NexPump Ai2800 User manual

Users Manual
NexPump, Inc.
Phone: [phone]NEX (4639)
Fax: [phone]
Email: [email protected]
Web Address: www.nexpump.com
Manual 3.01.0002
NexPump is a Registered Trademark of NexPump, Inc.
Copyright © 2003-2010 NexPump, Inc., All Rights Reserved
Patent Pending

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NexPump Instruction Manual
TABLE OF CONTENTS
Important Safety Precautions
Personal Precautions
NexPump Precautions
Installation Procedures
NexPump Display Status
System Operating Status
Mode Selection
Battery Operations
Auto Notification Status
Pump Operations
Charge Operations
Function Button
Alarm/Phone Monitor
Testing Operations
Stats Information
Internal Fan Status
Input Power
Sensor Operations
Auto Notification
Normal And Critical Errors
Appendix
Quick Reference
Label Code Chart
Warranty Information
Installation Examples
The NexPump Ai is a microprocessor Controlled state-of-the-
art sump pump system. Installed as a primary or backup
sump pump it will protect your home or business with mis-
sion-critical reliability.
The NexPump Ai System includes:
1 - NexPump Ai System Unit
2 - 4000 GPH High Capacity Pumps w/Adapters (Ai5600)
1 - 4000 GPH High Capacity Pump w/Adapter (Ai2800)
2 - Sensors with SS mounting clamps
1 - Battery Extension Cable
1 - Surge Protector
Purchased Separately: (Required to operate)
1 - Deep-Cycle Rechargeable Battery
(See Appendix for more information)
You will also need to supply:
- 1-1/2" or 2” rigid PVC pipe and fittings
- PVC cement and primer
- Check valves
Please take a moment and review this manual before starting
installation or powering up your NexPump Ai System.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS - This manual contains impor-
tant safety and operating instructions for the NexPump.
Follow these important safety precautions. Failure to follow
safety precautions can result in personal injury or damage to
the NexPump.
CAUTION - To reduce the risk of injury, charge only
lead type rechargeable batteries. Other types of
batteries may burst causing personal injury and damage.
Do not expose the NexPump System Unit to rain or snow.
Do not install the NexPump System Unit where tempera-
tures will be below freezing (32 degrees Fahrenheit).
Do not charge a battery that may be frozen.Allow battery to sit at
room temperature before connecting to the NexPump.
If an extension cord must be used, make sure
A: That the pins on the plug or extension cord are the
same number, size and shape as those of the
plug on the NexPump System Unit.
B: That the extension cord is properly wired and in
good electrical condition.
C: That the wire size is large enough for theAC
ampere rating of the NexPump System Unit.
Do not operate the NexPump System Unit if it has received a
sharp blow, been dropped, or otherwise damaged in anyway;
take it to a qualified serviceman.
Do not operate the NexPump System Unit with a damaged
cord or plug – have them replaced or repaired immediately.
Do not disassemble the NexPump System Unit; take it to a
qualified serviceman when service or repair is required.
Disassembly may result in a risk of electric shock or fire and
void the warranty.
Never pull directly on any wiring connected to pumps,
battery, AC power or sensor. Disconnect by pulling on connectors
only.
Never force the connectors out of place, they should disconnect
and connect easily. Some connectors have safety latches, so make
sure they are depressed.
1

Never attempt any maintenance and/or cleaning with the
NexPump powered up Risk of electric shock may result.
IF LEAD-ACID BATTERYIS USED
WARNING - RISK OF EXPLOSIVE GASES
WORKING IN THE VICINITY OF A LEAD-ACID BATTERY
CAN BE DANGEROUS.
BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL BATTERY OPERATION.
FOR THIS REASON, IT IS OF THE UTMOST IMPOR-
TANCE THAT EACH TIME BEFORE
USING YOUR NEXPUMP CONTROL UNIT YOU READ THIS
MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY.
Be sure the area around the battery is well
ventilated.
A SPARK NEAR THE BATTERY MAY
CAUSE AN EXPLOSION.
PERSONAL PRECAUTIONS
IF LEAD-ACID BATTERYIS USED
Someone should be within range of your voice and/or close
enough to come to your aid when
you work near a lead-acid battery.
Have plenty of fresh water and soap nearby in
case battery acid contacts skin, clothing or eyes.
Wear complete eye protection and clothing
protection. Avoid touching your eyes while
working near the battery.
If battery acid contacts skin and/or clothing, wash immediate-
ly with soap and water. If acid enters the
eye, immediately flood eye with running cold water for at
least 10 minutes and get medical attention immediately.
When the battery fluid level is low, add distilled water in each
cell until the level reaches the
indicator on each cell. Do not overfill.
PRECAUTIONS FOR ALL BATTERIES
NEVER smoke or allow a spark or flame in the vicinity of the
battery.
Be extra cautious to reduce the risk of dropping
a metal tool onto the battery. It might spark
or short-circuit the battery or another electrical
part that may cause an explosion.
Remove personal metal items such as rings, bracelets, neck-
laces and/or watches when working with a battery. A battery
can produce a short-circuit current high enough to weld a
ring (or the like) to metal, causing a severe burn.
When Cleaning the battery terminals. Be careful to keep cor-
rosion from coming in contact with eyes.
Do not use the system unit for charging Dry-Cell batteries, that are
most commonly used with household appliances. These batteries
may burst and cause injury to persons and damage to prop-
erty.
NEXPUMP PRECAUTIONS
NEXPUMP SYSTEM UNIT LOCATION
Locate the NexPump System Unit as far away
from the battery as the DC cables permit.
Do not operate the NexPump System Unit in an area with
restricted ventilation.
Do not set a battery on top of the NexPump
System Unit.
Do Not allow the NexPump System Unit to sit on top of the
battery.
Do not block NexPump System Unit ventilation in any way.
Allow at least 6 inches of free space from the fan exhausts
on the right side of the NexPump Unit.
Do not install the NexPump System Unit where temperatures
will be below freezing (32 degrees Fahrenheit).
Do not install the NexPump System Unit where it will be
exposed to outside elements.
DC CONNECTION PRECAUTIONS
The NexPump Unit requires a connected marine type
deep-cycle battery for proper operation. You must assure
the battery is connected while the NexPump Unit is oper-
ating.
When attaching the battery cables to the battery posts,
secure them to insure a good connection.
The BLACK wire from the NexPump System Unit
connects to the NEGATIVE (-) post of the battery.
The RED wire from the NexPump System Unit
connects to the POSITIVE (+) post of the battery.
The ‘REVERSE POLARITY LED’ will illuminate if
the battery connections are reversed.
2

AC POWER REQUIREMENTS
The NexPump System Unit must be operated from 120 volt
household current from the AC outlet.
GROUNDING AND AC CORD INSTRUCTIONS
The NexPump System Unit should be plugged into
an outlet that is properly installed and grounded in accordance
with all local codes and ordinances.
DANGER
Never alter the AC cord or plug provided – if it will not fit the
outlet, have a proper outlet installed by a qualified electrician.
Improper connection can result in a risk of an electric shock.
An adapter should not be used with this
NexPump System Unit.
Important Safe Guards:
Never allow other items that discharge into the sump pit
to be unsecured. Unsecured items such as garden
hoses, laundry hoses and other medium used to dis-
charge water may interfere with the NexPump pumps or
sensors. Be sure to secure all items that may be used to
discharge water into the sump pit and verify that
secured items will not interfere will any NexPump opera-
tions.
INSTALLATION PROCEDURES:
Installation of plumbing has many options depending on how
the plumbing is setup in the first place. The most common
method whether the NexPump is used as the
primary(Diagram A) or a backup(Diagram B) is to wye the
existing plumbing. If this is a new installation just one wye
will be needed to create two discharge paths for each pump.
Each pump can also have a separate discharge if this is
preferable. However in most cases the use of tees or wyes will
work fine. 2” PVC can be used to get the full dual pump dis-
charge rate. The 2” only needs to be installed from the wye
to the outside. Check valves must be installed when a com-
mon discharge is used. The check valves are designed to go
one way, verify the correct direction when installing the check
valve.
Note: If you are installing a single pump version, install using
Diagram A as a reference. The second pump would be your
installed electric pump.
PARTS NEEDED FOR INSTALLATION:
Check Valves,PVC pipe, PVC cement and primer,Nylon Wire
Ties
Install plumbing referring to the examples diagrams at that
end of this users manual. The diagrams and the following
assume 1-1/2" PVC pipe will be used. Arrange plumbing so
when the vertical pieces are connected, the pumps will fit into
the sump pit and each pump will sit on the bottom of the pit.
Note: For very narrow sump pits, pumps can be stacked
on top of each other. Pump 1 must be the lowest pump.
Connect the wye to the discharge pipe. Connect the 45
degree elbow(s) to the wye. To attach check valves cement
small pieces (approximately 2-1/2") of PCV pipe. This will
allow enough PVC for the check valves to attach securely.
Attach the check valves and securely tighten the hose
clamps to the upper part of the PVC.
Note: Tighten all the hose clamps on check valves, not
just the ones you are fitting.
Attach the Elbows to each Pump and tighten pump side
clamp securely. Place and position each pump into sump pit.
Measure from the Elbow of each pump to corresponding
check valve, add approximately 2-1/2” for insertion into check
valve and elbow. Cut PVC to measured length. Drill a 1/8-
inch vent hole approximately 3” from the end that will be
inserted into the Elbow. Do this for each piece of PVC piece.
IMPORTANT: When using a check valve a small 1/8” hole
must be drilled in the vertical discharge pipe of each
pump. DO NOT DRILL INTO THE PUMP OR THE ELBOW.
The hole should be drilled at a 45 degree downward
angle to prevent water spraying upwards and position
the hole about 2” above the Top of the Elbow.
Trim as necessary so each pump will sit on the bottom of the pit
as close to level as it can be.
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Note: Again for very narrow sump pits, pumps can be
stacked on top of each other. Pump 1 must be the lowest
pump.
Note: Make sure the RED filter screen is securely
attached to each pump.
Remove each pump and insert each vertical PVC piece into
the Elbow, tighten hose clamps securely. Place each pump
into pit again and insert PVC into the corresponding check
valve. Tighten hose clamps securely.
IMPORTANT: REVIEW ALL SAFETY PRECAUTIONS AND
INSTRUCTIONS BEFORE PROCEEDING!
Finishing Installation:
Step 1: POSITIONING THE SENSORS:
Sensor 1 is the main sensor and will turn on the pump(s) when
the water rises above the sensor. The Gray Sensor should be
used for Sensor 1. Sensor 2 does not operate exactly like
Sensor 1 however, functions as a backup and high water
alarm. (See Sensor Operations). The Black Sensor should be
used for Sensor 2. Attach the sensors to any discharge pipe
securely with the supplied stainless steel clamps (float side
down,sensor cable up, mounting bracket up, remove any ship-
ping tape). Float on each sensor should move freely up and
down.
Position the sensors as described below.
Sensor1 (Bottom Sensor Receptacle):
NexPump in Backup Mode:
Position Sensor 1 approximately 4 - 6 inches above the activation
level of the Main pump. If not, the NexPump may show the
pumps have been activated prematurely.
NexPump in Primary Mode (Only Sump Pump):
Position Sensor 1 approximately 2 - 4 inches above the pumps.
NexPump in Primary Mode (With Electric Sump Pump):
Position Sensor 1 above the level of the NexPump pumps
and below the level that the AC pump will turn on.
Sensor 2 (Top Sensor Receptacle):
Sensor 2 is used as a backup and alert for high water. When activat-
ed the NexPump will begin operation in a special emergency mode
and with ‘Auto Notification’ will alert immediately. Position sensor 2
about 6 inches above all other trigger points.
IMPORTANT : If a vent hole is drilled in the discharge pipe
make sure a sensor or sensor clamp does not block the vent
hole. Do not position the sensor on the side of the discharge
pipe facing the drain tile or any incoming rush of water.
Be sure the sensor is positioned vertically with the mount-
ing bracket at the top.Verify the sensor is not tilted in any
way.
Step 2: SECURE WIRES:
Secure the pump and sensor wires to discharge pipes with
nylon wire ties.
IMPORTANT : Make sure the wire ties or wires do not
interfere with the operation of the sensor.
Step 3: POSITION BATTERYAND NEXPUMP
SYSTEM UNIT:
Place the battery in a battery box (if used) on the floor or on
a secure shelf or ledge. Position the NexPump System Unit
in a secure place ideally above the floor. Two 8” shelf brack-
ets attached to the basement wall work fine to support the
NexPump. The pump wires and sensor wires should be long
enough to position the NexPump System Unit approximately
1-2 feet above the floor. Be sure the power cord will reach
the AC power socket. Secure the electrical power cord as
needed. Do not plug in at this time. Make sure battery
cables will reach battery. Do not connect battery cables at
this time.
Step 4: PUMP AND SENSOR CONNECTIONS:
Plug the pump connectors into the NexPump System Unit.
If both pumps are not on the bottom of the pit then
Pump 1 must be the lowest pump. Slightly pull back on
each connector to verify they are securely attached. Plug in
the Sensors. Primary Sensor (Sensor 1) to bottom recepta-
cle. Backup Sensor (Sensor 2) to top receptacle. The sensor
connectors plug in with the security latch to the right of the
NexPump System Unit. Verify the sensor connectors are
securely attached.
IMPORTANT:
To disconnect a pump connector, slightly depress the
security latch on the bottom of the connector and pull
out the connector.
To disconnect a sensor connector, slightly depress the
security latch on the right side of the connector and pull
out the connector.
Step 5: CONNECTING THE AC POWER CORD:
IMPORTANT: Make sure that the AC outlet is a grounded
outlet.
If you have an electric pump you still want to operate, you
should install a duplex receptacle (if you have a single outlet
receptacle). This will allow an outlet for the NexPump Unit
and your electric pump. A 20 amp receptacle should be used.
Note: Turn off the power to the outlet if replacing the
receptacle is necessary.
Plug in the AC power cord and verify a secure connection.
The NexPump Unit will turn on. The display will illuminate
and ‘Operating Status’ LED should be blinking. The NexPump
will display ‘NexPump, Inc.” and then the normal status mode.
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Note: An Alarm may sound at this time because the bat-
tery is not connected.
Step 6: CONNECT THE BATTERY:
Attach the battery cables to the battery, the BLACK wire to the
NEGATIVE(-) post, the RED wire to the POSITIVE (+) post and
tighten securely.
IMPORTANT: Check the ‘Battery Reverse’ LED on the
NexPump System Unit and if it is illuminated the connec-
tions are reversed.
Step 7: CHECK YOUR NEXPUMP:
All alarms should be off at this time. Check the mode setting
and set to your preferred setup (See Mode Selection -
NexPump Operation). The NexPump will schedule an auto-
matic self-test approximately two minutes after power up. If
there are any errors they will be displayed on the LCD display
and an alarm will sound.
Step 8: COVER AND SECURE BATTERY BOX:
If Battery Box was purchased, place Battery in Battery box,
secure Battery Box cover with the safety strap.
Step 9: PERFORM ABATTERY RESET:
Check in Quick reference or Function Button section and per-
form a battery reset. This will enable the battery charge
process.
Note: Always perform a battery reset when replacing a
battery or installing a new system.
Your NexPump is ready for use!!
This side intentionally blank
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NEXPUMP DISPLAY STATUS:
Display Note: Every 15 Seconds the actual error mes-
sage will scroll across the display. It will display one
error at a time, however will let you know how many
there are in the format of “Error X of X”, followed by the
error message.
SYSTEM OPERATING STATUS:
The ‘Normal Operation’ LED must be blinking to
indicate the NexPump Unit is operating. In addition, the mode
location (last digit on display) will also be blinking with the
mode the NexPump is in. If both of these are not blinking then
there may be problem with the NexPump Unit.
MODE SELECTION:
Primary Mode - Used when pump is the primary pump
o Mode switch in up position. The letter ‘P’ will
be blinking in the mode position on display.
o NexPump WILL NOT display or sound an alarm
if pump(s) are activated.
Backup Mode - Used when pump is a backup pump
o Mode switch in down position. The letter ‘B’ will
be blinking in the mode position on display.
o NexPump WILL display and sound an alarm
if pump(s) are activated. Indicated by ‘A’ in the
corresponding pump location.
Manual Mode – Used to manually turn on both pumps
o Switch in up position manual mode is ON and in
down position manual mode is OFF.
o The letter ‘M’ will be blinking in the mode
position on display.
o When operating on battery power the NexPump
will not calculate Battery Life Remaining.
o Clog or Vapor Lock detection is disabled.
o Pumps will turn off for 5 seconds each minute to
clear possible Vapor Lock Conditions.
o Auto Self-Test is disabled
Emergency Mode – Automatically selected
o The letter ‘E’ will be blinking in the mode
position on display.
o Alarm will sound with display indicting the reason
NexPump went into the Emergency mode.
Note: The Emergency mode will automatically be
selected if either Sensor is disconnected or BOTH
pumps are in a disconnected mode. In the Emergency
mode the pumps will operate every two minutes when
the sensor is disconnected or operate both pumps when
the pumps show a failed condition AND sensor 1 is
active.
6

BATTERY,AUTO NOTIFICATION STATUS:
The display digits 6-10 represent the Battery
Status or indicates Auto Notification Status.
BATTERYSTATUS:
‘XX.XX’ Battery voltage (Normal readings ‘12.40-13.20’)
‘Disc’ Battery disconnected
Displays when Battery is disconnected or Battery voltage is
below 1.5 volts
‘Rep_’ Check or Replace Battery
(The ‘_ ‘ indicates the reason for failure “numeric value”)
1 = Battery failed due to load test
2 = Battery failed due to charge cycling
3 = Battery failed initial load test
See (Battery Troubleshooting)
Auto Notification:
Notification will occur on Battery Disconnected or Battery
Replacement Errors.
AUTO NOTIFICATION STATUS:
"BUSY" - Notification System Lines Busy
"INUSE" - Phone line is In Use
"DIAL" - Dialing Notification System
"CONND" - Connected to Notification System
"INFOS" - Error Information sent
"NLINE" - No Phone Line Connected
"MFAIL" - Internal Notification System Problem
BATTERY TROUBLESHOOTING
If you are receiving a replace code on your NexPump dis-
play, do the following:
1. If you have Auto Notification, Disconnect the Phone Line
2. Disconnect the Battery, you DO NOT need to power off
the NexPump System Unit.
3. Check fluid levels (See BATTERY FLUID LOW Section
below)
4. If you DO NOT need to correct the fluid levels then you
should replace the Battery, Follow the section on Battery
Replacement
5. Re-Connect battery, Attach the battery cables to the battery -
the BLACK wire to the NEGATIVE(-) post, the RED wire to the
POSITIVE (+) post and tighten securely.
IMPORTANT: Check the ‘Battery Reverse’ LED on the
NexPump System Unit and if it is illuminated the connec-
tions are reversed.
6. Perform a Battery Reset.
7. LCD will display ‘Battery Reset’.
8. Charging cycle will begin.
9. If ‘REP_’ code sounds again soon after this procedure replace the
Battery.
BATTERYMAINTENANCE:
Check Fluid levels, if applicable in Battery at least once
every 6 months.
BATTERY REPLACEMENT:
IMPORTANT: Review the safety instructions before proceed-
ing.
1. Disconnect the Battery.
2. Remove old Battery and dispose of properly.
3. Connect new Battery, Attach the battery cables to the battery -
the BLACK wire to the NEGATIVE(-) post, the RED wire to the
POSITIVE (+) post and tighten securely.
IMPORTANT: Check the ‘Battery Reverse’ LED on the
NexPump System Unit and if it is illuminated the connec-
tions are reversed.
4. Perform a Battery Reset. Function Button until ‘R’ displays (
5. LCD will display ‘Battery Reset’.
6. Charging cycle will begin.
BATTERY FLUID LOW: (LEAD-ACID BATTERY)
Follow the procedure below to refill the battery cells.
IMPORTANT: Follow the power off procedure and review the
safety instructions before proceeding.
Remove the cell caps of battery. Add distilled water to each
cell. If distilled water is not available tap water with a low
mineral content may be used. NEVER ADD MORE ACID. Fill
the battery cell so water is just below the fill cap.
BATTERYLIFE:
Battery life is approximately four years of the battery being in
service. Most Deep-Cycle Batteries can endure hundreds of dis-
charges and charges. The NexPump performs many tests to
check the life of the battery and should alert you of potential bat-
tery problems.
CLEANING BATTERY TERMINALS:
Remove the battery cables and clean the battery posts with a
battery post terminal cleaner or a wire brush. A 50/50 solution of
water and baking soda may also be used if necessary. Do not
allow the cleaning solution water to enter the battery. Thoroughly
dry the posts and apply petroleum jelly or another terminal protec-
tive material if needed.
7

BATTERYCONNECTED IMPROPERLY:
If the battery cables are connected to the wrong posts, the
‘Reversed Polarity’ Red LED will illuminate. If the NexPump
unit is on when the reverse connection is made, an alarm
will also sound and the input power will indicate as off as well
as a FAN error.
Correct by reversing the battery cables.
RUNNING ON BATTERY POWER:
A‘XXH’ indicates the NexPump is on battery power. ‘99H’ will be
the maximum number displayed as shown above and does not
reflect the actual battery life as this may be much greater. The
number displayed is the approximate time remaining until
the battery is discharged enough that the pumps will no
longer function normally. The Battery Life Monitor calculates
the remaining life approximately 4 times an hour. A close
approximation should be displayed within the first 30 - 45
minutes. When running on battery power you should
closely monitor the Battery Life. Especially at 2 Hours
left, at high duty cycle times the battery can quickly go
to 0 Hours. This can take less than 1 hour, so be aware.
While every attempt to accurately calculate the remain-
ing battery life, fluctuating pump(s) times, battery condi-
tion and battery state before going to battery power will
affect the calculated time throughout the power loss. An
alarm will also sound from the loss of electric power, which
may silenced (See Silencing the Alarm). Once AC power is
restored the display will again display the charge status.A charge
cycle may also be enabled at this time.
IMPORTANT: When the Battery Life is calculated to be 2 Hours,
an alarm will sound to let you know it is low on Battery Power.
When the NexPump calculates there are zero hours left on the
time remaining, the pump(s) will no longer operate. The
pump(s) are disabled to prevent the battery from completely dis-
charging and turning off the NexPump unit. When zero battery
life is remaining the NexPump unit can still operate for hours to
notify there are problems.
Auto Notification Module Installed:
Notification will occur on the initial loss of electric power. If
you silence the alarm before the notification occurs, notifica-
tion is canceled. When the calculated battery life is two
hours, notification will occur with the impending battery life.
Note: If Battery Life is low and Battery Power is still
needed you may connect a spare Battery at this time.
If the NexPump is powered up with only the battery and is
on battery power when the initial self test is scheduled, the
self test WILL NOT run.
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8

PUMP OPERATIONS:
DISPLAY IDENTIFIERS:
Pump 1 – First display digit
Pump 2 – Second display digit
Identifiers;
‘O’ Pump is off
‘I’ Pump is on
‘A’ or ‘a’ Pump was activated – Backup mode
only Note: If identifier is blinking, alarm is in the silence
mode. To clear see Function button.
‘F’ or ‘f’ Pump Problem
‘P’ or ‘p’ Possible Plumbing Clog error
‘V’ or ‘v’ Possible Vapor Lock
‘X or x’ Suspected Clog Error
‘Y or y’ Suspected Vapor Lock
‘R’ or ‘r’ Pump has over 2500 hours
‘Q’ Pump Driver Problem
To clear any error - See Function Button
PUMP DISPLAY IDENTIFIERS:
Each pump has a corresponding letter indicting the status of
the pump. The lower case counterpart simply means the
pump is currently in use. When the identifier is a ‘F’ or ‘f’ the
NexPump has failed the indicated pump. However, if both
pumps are considered failed the NexPump will attempt to
operate the pumps within the Emergency Mode.
Auto Notification Module Installed:
Notification will occur on any pump problems.
PUMP TROUBLESHOOTING:
PUMP FAILURE:
Pump failures will sound an alarm and be indicated by the let-
ter ‘F’ or ‘f’ in the corresponding location on the display. Other
indictors can be ‘P’ or ‘p’ for a plumbing problem or ‘V’ or ‘v’
for a vapor lock problem. If both pumps are in the disconnect-
ed mode, the NexPump unit will enter the emergency mode
to cycle the pumps every two minutes if Sensor1 is becomes
active. Pump errors must be cleared by the function button.
Plumbing and Vapor lock errors are cleared automatically. Clear
the failed condition by depressing and holding the function
button for 1 second, while the ‘C’ is in the last location of the
display release the function button. The display will show
‘Alarm Cleared’ and the identifiers will return to normal.
PUMP INDICATORS ON DISPLAY:
‘F’or ‘f’ - Pump failure, followed by a corresponding ‘H’ or ‘L’ to indi-
cate the failure type. If ‘H’ is indicated the pump is drawing too much
current. If ‘L’ is indicated the pump is drawing to little current.
Troubleshooting ‘H’ :
Clear alarm and run self-test, if pump again shows failure with ‘H’
then pump is faulty
Troubleshooting ‘L’ :
Clear alarm and run self-test, if pump shows failure with ‘L’, check
fuse condition for corresponding pump, check that connector is prop-
erly seated.
Important: Be very suspect if a pump shows failed. If subse-
quent tests reveal the same condition, the pump is faulty and
SHOULD NOT be used. You can disconnect it from the
NexPump Unit and disable the alarm until you can install a
replacement pump. Do not use any other pump except an OEM
pump from NexPump.
‘P’ or ‘p’ - Pump disconnected with plumbing clog. This error
indicates a possible clog in the plumbing discharge. Verify
the discharge is clear of obstructions. In the winter it may
indicate a frozen discharge pipe. Error will clear automatically
when sensor becomes inactive.
‘V’ or ‘v’ - Pump disconnected with vapor lock. This error indi-
cates there may be air trapped in the discharge plumbing. It
may also indicate the sensor is stuck in the up position. If a
check valve is used, check for a proper vent hole in the pump
discharge pipe or check if the vent hole is clogged. Error will
clear automatically when sensor becomes inactive.
‘R’ or ‘r’ - Pump has reached it’s operational life-span. The
pump may still be operational however has reached the aver-
age life span. The pump should be replaced as soon as pos-
sible. Contact NexPump for a replacement pump.
Note: Note which pump has the replace flag before clear-
ing the alarm.
‘X’ or ‘x’ - ‘Suspect Mode’. When a clog condition is first
detected the NexPump unit will display an ‘X’ in the corre-
sponding pump location. This is just a precautionary mode to
alert of a possible problem. The lower case ‘x’ indicates the
pump is running.
‘Y’ or ‘y’ - ‘Suspect Mode’. When a vapor lock condition is
first detected the NexPump unit will display a ‘Y’ in the corre-
sponding pump location. This is just a precautionary mode to
alert of a possible problem. The lower case ‘y’ indicates
the pump is running.
‘Q’ - There may be an electronic circuitry problem. Call
Support.
9

PUMP(S) ON:
The display will show ‘O’ - off or ‘I’ - on.The pump(s) will turn
off automatically when the water is below the pump dis-
charge level.
Note: When on battery power and the time remaining is near
exhaustion, the pump(s) may continue to run for approximately
1 minute before turning off.
PUMP WAS ACTIVATED: (Backup Mode Only)
If either pump was activated the display will show ‘A’ or ‘a’ for the
corresponding pump. If the pump location is blinking the alarm is
in the silence mode. An ‘Activated Pump’ alerts that the NexPump
was needed. This may indicate the failure of theAC pump or
other primary pump that the NexPump unit is backing up. It may
also indicate that the incoming water was at a flow that the pri-
mary pump could not handle and the NexPump was needed for
additional discharge capacity. After determining the source of
the problem, clear the failed condition by depressing and
holding the function button for 1 second, while the ‘C’ is in
the last location of the display release the function button.
The display will show ‘Alarm Cleared’ and return to normal.
PUMP REPLACEMENT
Displayed as ‘R’ or ‘r’. Pump has reached average life span.
Pump may still be operational however should be replaced at
this time. Clear the condition by depressing and holding the
function button for 1 second, while the ‘C’ is in the last loca-
tion of the display release
the function button. The display will show
‘Alarm Cleared’.
Note: Write down which pump has been flagged as
replace. Once cleared there is no user available method
to retrieve the replace flag information.
PUMP FUSE
Each pump is protected by a 25-AmpATC Type Fuse. The fuses are
located inside the NexPump unit and can be accessed by the panel
on the bottom. The power should be removed before attempting
removal of the panel. The pump fuses are located towards the fan
and are clear plastic with a 25 stamped on them. The Pump 2 fuse is
closest to the access panel, while Pump 1 is directly above. If a fuse
blows, check for possible obstructions or frayed wires on the failed
pump. It may also indicate a failed pump.
This side intentionally blank
10

CHARGE OPERATION:
The display digits 12-14 represent the charge status, battery life
remaining when operating on the battery or a Fan problem.
CHARGE STATUS
Note: The ‘xx’ indicates charge rate
‘Off’ Charge is OFF, battery is fully charged
‘Fxx’ Indicates the Full charge mode
‘Txx’ Indicates the Trickle charge mode.
‘Mxx’ Indicates the ‘Maintain Mode’
‘Dis’ Charge is disabled.
The charge disables for the following reasons:
Battery is disconnected, Input power is off, Both pumps are in
use.
‘ttS’ The count in seconds when the charge system will
start. This allows time for the battery to be reconnected
before the charge starts again.
‘FL1’ or ‘FL2’ Charge system failed:
Verify battery and electric connections.
Check Charge Fuse and replace, if needed
Run manual test - if failed condition still exists
unit may be defective.
CHARGING SYSTEM TROUBLESHOOTING:
CHARGING SYSTEM:
The NexPump has a built in automatic 20 amp battery charger. It
is protected by a 25 amp Fuse inside the unit. The charging cir-
cuit is disabled anytime the battery or electric power is discon-
nected or if both pumps are operating. The charge states can
be ‘Off’, ‘Full’, Trickle’ and ‘Maintain Mode’. When the charge
is started the display will show ‘Fxx’, where the ’xx‘ is the
actual charge rate in amps. The charge is automatically moni-
tored at all times. After a full charge is complete the
NexPump unit will go into a trickle charge mode. The display
will show ‘Txx’ where the ‘xx’ is the charge rate. When the
Trickle mode is complete, the NexPump will go into the
‘Maintain Mode’. In the ‘Maintain Mode’ charge rates can be
very low and may even display ‘M00’ for extended times.
IMPORTANT: If you need to disconnect the battery or turn off
the NexPump unit while charging is in progress, first remove
the battery cables. This will disable the charging unit. After
the charging system is disabled you can unplug the electrical
power cord. The NexPump will remember what state the
charge system was in and re-enable the charging state to the
condition is was when the unit was turned off. After re-con-
necting the battery the NexPump will show a count down
from 30 seconds to allow you some time to re-connect the
battery before the charge system starts again.
When the battery has reached its maximum charge the
NexPump unit will automatically turn off the charging system.
During automatic and manual tests the charge system is test-
ed. The charge system is not tested while the electrical
power is off or if the battery is disconnected. During these
events the charge system is automatically disabled. If the charge
system fails in any way the display will show ‘FLx’ in the charge
status area and an alarm will sound.
CHARGER FAILURE:
In the event of a charge failure do the following:
1. Reset Charge Error
2. Verify battery and electrical connections.
3. Run a manual test to check the system again.
4. If Charge Fails again, Check Charge System Fuse (Replace
as necessary)
5. If charge system still indicates ‘FLx’ then the NexPump
unit may be defective.
Note: If the battery is completely discharged the
NexPump may display the battery disconnected then
count down from 5 seconds. This may cycle until the bat-
tery is at a sufficient level to start the full charge mode. This will
prevent an overload to the charge system or battery.
CHARGING SYSTEM CIRCUIT BREAKER:
The charging system is protected by a 25Amp ATC Type Fuse. The
fuse is located inside the NexPump unit and can be accessed by the
panel on the bottom. The power should be removed before attempt-
ing removal of the panel. The charger fuse is located in the middle of
the circuit board and is clear plastic with a 25 stamped on it. If a fuse
blows, check for possible shorting or frayed battery cables. Run a
manual test to check the charge system again. If the charge system
fails again the unit or battery may be defective.
Auto Notification Module Installed:
Notification will occur on a charger failure.
11

FUNCTION BUTTON:
When depressed and held, will allow user to perform a list of
functions. The last display digit will read an alpha character
and change about every 3 seconds, in addition you will hear
a beep each time the character changes. Release the func-
tion button when the display reads the function you would
like to run.
The following is a list of functions:
‘C’ – Clears alarms
Clears alarms that must be manually reset. If there are no
alarms currently active then NexPump will display that there
are no alarms to clear. Note: When you clear any alarms,
the auto notification system will automatically set a
counter so notifications will not occur for about one
hour since the system knows you are there.
‘S’ or ‘U’– Silence or UnSilenceAlarm
Useful if power is out and you do not want to hear the alarm
for input power or pump(s) active.Automatically cleared after
24 Hours
‘U’ – Un-Silence alarm
Alarm will sound again
‘T’ – Will run manual self test.
(See Automatic and Manual testing)
‘N’ – Displays Serial Number.
‘A’ – Displays Firmware Revision and Option Code
‘M’ - Phone Monitor
‘R’ - Battery Reset.
‘I’ - Stats Information
‘D’ - Disable Alarm.
‘E’ - Re-Enable Alarm after being disabled.
‘-’ - Function end, no function will occur.
SILENCING THE ALARM:
The alarm can be silenced for Normal Errors Only (See
Appendix). Critical errors can be silenced by disabling the
alarm as described below. To silence the alarm depress and hold
the function button and wait (about 3 seconds) for the last digit on
the display to change to ‘S’ then release function button. The alarm
is silenced for 24 hours and automatically enabled after that time.
Note: When the alarm is silenced the identifiers will blink
to notify which conditions are in the alarm state.
UNSILENCING THE ALARM:
Repeat the above section on Silencing the alarm. Instead of
a ‘S’ displaying a ‘U’ will display.
DISABLING THE ALARM:
The alarm can be disabled if needed. When disabled, the
alarm will not sound, however the display will toggle ‘ALDIS’
along with the battery voltage. To disable the alarm depress and
hold the function button and wait (about 25 seconds) for the last
digit on the display to change to ‘D’ then release function button.
The alarm is disabled for 5 days and automatically enabled after
that time.
Note: All Notifications will take place while the alarm is
disabled, disabling the alarm simply turns off the sound.
ENABLING THE ALARM:
Repeat the above section on Disabling the alarm. Instead of
a ‘D’ displaying a ‘E’ will display.
PHONE MONITOR:
The Phone Monitor when enabled will alert you by sounding
the alarm that the NexPump unit can no longer sense that a
phone line is connected. The Phone Monitor is turned off by
default. The display will toggle ‘PHMON’ along with the bat-
tery voltage when this error occurs. To enable or disable the
Phone Monitor, depress and hold the function button and wait
(about 20 seconds) for the last digit on the display to change to ‘M’,
then release function button. The display will appear as below.
Press and hold the function button again, a blinking cursor
will toggle between the ‘Y’ and ‘N’. Release the function but-
ton and the system will save the current setting (about 10
seconds). This setting will remain in effect until changed,
even if the unit is powered off. Clear the alarm using the
function button ‘C’ option.
Auto Notification Module Installed:
Once the alarm is silenced for a Normal Error, the
Notification system will not provide Notification. However, if a
Critical Error where to occur during the silence period
Notification will occur. If the alarm is still active after the 24
hours silence period, the alarm again will sound and notifica-
tion will occur.
12

BATTERYRESET:
The Battery Reset is used to enable the charge system fol-
lowing a battery replacement, battery maintenance or new
install. It is also used to change the amount of Amp Hours for
your particular configuration. Depress and hold the function but-
ton for about 15 seconds, an 'R' will appear in the last character
on the display, release the function button. The display should be
as above, with the exception of the xxx will be a number between
105 and 440. Depress and hold the function button (number will
increment by 5) until the number is the correct Amp Hour rating
for your battery configuration. If you do not know use 105 for one
battery and 210 for two batteries. Each time you perform a battery
reset the NexPump system will default to the last configuration
value. When the proper number is configured release the function
button and the configuration will be saved (about 10 seconds after
release). The charge system will then start.
STATS INFORMATION:
Depress and hold the function button for about 21 seconds, an ‘I’
will appear in the last character on the display, release the func-
tion button. The display will toggle through the following statistics:
1. P1=xxxxxH (yy)
xxxx = Pump 1 Count in Hours
yy = Pump 1 2500 Hour Count
2. P2=xxxxxH (yy)
xxxx = Pump 2 Count in Hours
yy = Pump 2 2500 Hour Count
3. CPU=xxxxx Day(s)
xxxxx = Current Power Up Time in Days
4. TPU=xxxxx Day(s)
xxxxx = Total Power Up Time in Days
5. A=xxxxx
xxxxx = Automatic Test Count
6.M=xxxxx
xxxxx = Manual Test Count
7. PM=xxx BA=yyyA/H
xxx = Phone Monitor Status (On, Off)
yyy = Battery Amp/Hours
8. E/S=xxx
xxx = Empty Sump Status (On, Off)
PRIMARYVREF ERROR:
A ‘Primary VRef Failure’ indicates a hardware failure that the
NexPump uses to calculate voltages. The NexPump auto-
matically switches over to it’s backup reference once this
error is detected. You may ‘Disable the Alarm’ to stop the
alarm sounding until the error is corrected.
Auto Notification Module Installed:
Notification will occur on a VRef Malfunctions.
Note: VRef available only on firmware version 3.01.0000 or greater
TESTING OPERATION:
The NexPump System can perform automatic and manual tests.
An automatic test is scheduled every 12 Hours.A manual test can
be performed any time NexPump unit is turned on (After initial
power up test). To initiate a manual test depress and hold the func-
tion button and wait (about 6 seconds) for a ‘T’ in the last digit of the
display, then release function button.A test is then scheduled to
run.
Note 1: Some tests may be skipped because they cannot
be tested at that time.For example; if the battery is being
charged the NexPump will not test it until it is finished
charging.
Note 2: On initial power up the NexPump will initiate an
automatic test approximately two minutes after power
up. There is no need to run a manual test after initial
power up. However, if a manual test is scheduled on
power up it will not run until after the automatic test is
finished.
AUTOMATIC TEST:
Automatic testing of the NexPump is scheduled every 12
Hours. The following is a list of the tests performed during
the automatic test:
Battery
Pumps
Charge System
Notification System (If Installed)
Phone Line (If Phone Monitor is enabled)
MANUAL TEST:
Manual testing of the NexPump is available anytime (After ini-
tial power up test) with the function button.
The following lists the components in the Manual test:
Battery
Pumps
Charge System
Notification System (If Installed)
Phone Line Connection
Phone Line Polarity
Alarm
Display
Note: At the end of any Manual or Automatic test the
remaining water in the sump pit will be pumped out
automatically. This will prevent water remaining in the
sump pit and helps reduce corrosion of any metal
pumps.
Auto Notification Module Installed:
Notification will occur with any problems detected after a test.
13

FAN PROBLEM:
‘Fan’ - Indicates a Case Fan Problem The ‘Fan’ indicator
alternates (about 3 seconds) with the Charge Status or
Battery Life.
Auto Notification Module Installed:
Notification will occur on a FAN Malfunctions.
INPUT POWER:
Identifier is third display digit
Identifiers
‘O’ Input power is off
‘I’ Input power is on
Note: If identifier is blinking, alarm is in the silence mode
INPUT POWER TROUBLESHOOTING:
POWER FAILURE:
During an electric power outage your Nexpump will automati-
cally switch to battery power. The NexPump will display ‘O’
for the input power and sound an alarm. If the alarm is in
the silence mode the display digit will be blinking. When
power is restored the alarm will turn off automatically and an
‘I’ should be displayed for the input power.
POWER ON - INPUT SHOWS ‘O’:
If the power is on in the rest of the house :
1. Check your circuit breaker or fuse box for failure and cor-
rect as necessary.
2. Check the power plug. Make sure it is securely plugged
into the wall socket.
3. Check a lamp or electric tester in the same outlet
the NexPump is plugged into. If the outlet is working for
another device then the power supply in the NexPump may be
defective.
4. If power supply is suspected detective, the NexPump unit
must be returned for repair.
IMPORTANT: The NexPump power supply in not field
serviceable. Do not attempt to disassemble the
NexPump or power supply.
POWER ON - INPUT SHOWS ‘O’ - INTERMEDIATELY:
1. Check if another appliance is plugged into the same outlet
as the NexPump Unit. The appliance may be drawing to
much power to run all the devices plugged into that outlet.
2. Unplug others appliances and check if problem is
resolved.
Auto Notification Module Installed:
Notification will occur on an electric power loss. If the alarm
was silenced within 5 minutes of the alarm, the notification
system will be postponed. If the alarm is still active after the
silence period ends the alarm can be silenced again. This
will also postpone the notification again.
SENSOR OPERATIONS:
Identifier is fourth display digit
Identifiers
‘C’ - Sensors are connected & operating normally
‘1’ - Sensor1 is disconnected
‘2’ - Sensor2 is disconnected
‘H’ - Sensor2 is activated (High Water Alert)(45 seconds)
‘D’ - Both Sensors are disconnected
Sensor 1 normally operates both pumps. When Sensor 1 is
activated Pump1 should turn on, while Pump 2 should turn
after a slight delay. Sensor 2 does not operate the same as
Sensor 1. Activating Sensor 2 you will hear a double beep
(No Alarm sounding) that will let you verify Sensor 2 is work-
ing properly.
Note: The black sensor should be used for Sensor 2, while
the Gray sensor should be used as Sensor 1.
SENSOR TROUBLESHOOTING:
SENSOR DISPLAYING DISCONNECTED:
Verify the sensors are connected correctly and securely to the each
sensor receptacle. If the sensors are connected correctly, the sen-
sor may be defective.
Note: Anytime either sensor is disconnected the NexPump will
enter the Emergency Mode, which will operate both pumps
every 2 minutes. This is a safe guard mode since the NexPump
cannot sense the water level if the sensor is malfunctioning or
disconnected. If the backup sensor (sensor2) is activated the
NexPump enters a Special Emergency Mode. Both pumps will
run for 1 minute each 2 minutes if sensor2 remains active.
Auto Notification Module Installed:
Notification will occur on any sensor malfunctions. If the
backup sensor (sensor2) becomes active the NexPump will
provide immediate Notification since this is also considered a
high water alert.
14

AUTO NOTIFICATION:
NOTE: AUTO NOTIFICATION IS AN OPTIONAL FEATURE:
PHONE LINE INSTALLATION:
Use ONLY a RJ11 Phone Connector to plug into the
NexPump Unit, DO NOT use a RJ45 (Ethernet) connector. It
is also highly recommended to install an in-line surge pro-
tector before the NexPump Unit.
INITIAL REGISTRATION:
You must register your NexPump before Notification use.
Visit the NexPump’s website at ‘http://www.nexpump.com’
and click ‘Register My NexPump’. Fill in the initial form
using your complete serial number (format ‘NPAxxxxxxxx’)
and PIN number. On the following form, fill in all required
information along with the phone numbers and email
addresses you want the Auto Notification system to use to
contact you. Once you have registered successfully you will
receive an email confirming your setting.
CHANGING YOUR SETTING:
Visit the website at ‘www.nexpump.com’ and click
‘Customer Login’. Once logged in, you can change your
information and update. You can also change your login
password if you want. Once you updated your changes, you
will receive an email confirming the changes.
NOTIFICATION DETAIL:
When the NexPump detects an error, activation or electrical
failure it will sound an alarm. After approximately 30 minutes
for Normal Errors and 5 Minutes for Critical Errors, if the
alarm is still active, the Auto Notification feature will begin.
Notification has two types, Normal and Critical. Normal and
Critical errors are listed in the appendix. Notification of
Normal errors can be silenced just like the alarm can be
silenced. If you where notified by a Normal error such as a
power failure, you may be notified again if a critical error
where to occur. If you have been notified once for both a nor-
mal and critical error you will not be notified again until the
alarm is cleared and an error reoccurs. If the alarm is auto-
matically cleared, Notification will occur on each occurrence
of the error. For example, the power fails. You are notified
and acknowledge the call. The power is restored and fails
again later in the day. You will be notified again of the power
failure.
Important Note: Each time the alarm is cleared or after a
call has been completed a notification counter is reset and
will not allow the notification process to begin for about an
hour. This will prevent notification process from reoccurring
continuously.
NOTIFICATION SETUP:
To enable Auto Notification you must have the Auto
Notification Module installed. If you have the Auto Notification
module simply plug in a standard phone cord into the phone
jack on the left side of the NexPump System Unit. You
should perform a manual test to verify the phone connection
and polarity of the phone line.
1. Press Function Button Until ‘T’ appears (6 seconds).
2. Release Function Button.
3. Test is scheduled.
The NexPump will test the ANMod, test the phone line con-
nection and then test the polarity. A successful test will report
the following:
Test ANMod - reports an error on failure only
Test PhLine - reports ‘PhLine Connected’
Test Polarity - reports ‘Polarity OK’
See Auto Notification Troubleshooting for problems
NOTIFICATION PROCESS:
Notification Call:
You answer the call:
1. States message(s),
2. Pressing 1 lets you skip any message.
3. Lets you confirm the message.
4. Press ‘1’ to acknowledge or ‘0’ to listen again.
a. Press ‘1’ to acknowledge message.
5. Call ends
6. You will receive two emails, if configured.
a. Email stating the message.
b. Email confirming the status of the call.
Voicemail answers the call:
1. States the message(s).
2. Call ends
3. You will receive two emails, if configured.
a. Email stating the message.
b. Email confirming the status of the call.
NOTIFICATION CALL:
During a call you can press any digit to skip to the next mes-
sage. Pressing ‘0’ during the confirmation will replay the
message. Once acknowledged the call process will end.
AUTO NOTIFICATION TROUBLESHOOTING:
TEST REPORTS ‘NO PHLINE’:
1. The phone line is not active. Check the phone line connec-
tion. You can verify the phone line with a standard phone and
listen for a dial tone.
TEST REPORTS ‘POLARITY REVRSED’:
1. The phone line tip and ring wires are reversed. Simply
reverse the tip and ring (typically the red and green wires) or
proceed to step 2.
2. Check your phone extension cord.
a. The cord may be a cross over cable.
b. Replace with a straight through cable.
15

VERIFY AUTO NOTIFICATION IS INSTALLED:
1. Press Function Button Until ‘A’ appears (12 seconds).
2. Release Function Button.
3. Display shows revision number in the following format
‘x.xx.xxxx oooo’. The ‘x.xx.xxxx’ is the revision number and
the ‘oooo’ is any options installed.
4. If ‘Auto Notification’ is installed the option number will be
‘1xxx’. Only the first digit is applicable, if the number is a ‘0’
then ‘Auto Notification’ is not installed.
NORMAL AND CRITICAL ERRORS:
NORMAL ERRORS:
Alarm be silenced - See Function Button Operation
Auto Notification System:
When alarm is silenced the Notification System is postponed. If the
error continues when the 24 hour silence period expires, the alarm will
sound andAuto Notification will occur.
Pump Activated – (Backup mode Only)
Cleared by Function Button.
(If you do not want the alarm to sound or worry about the
Notification occurring after a silence period during a pro-
longed power outage. Simply switch the mode to primary.
This will no longer sound the alarm or Notify on pump activa-
tion. Remember to switch the mode back to backup.)
Input Power Off
This error is automatically reset when power is restored
CRITICAL ERRORS:
Alarm can be disabled - See Function Button Operation
Battery Disconnected
Automatically reset when battery is connected.
Sensor disconnected
Automatically reset when sensor is connected.
Pump Problem
Cleared by Function Button.
Fan
Cleared by Function Button.
Plumbing Errors
Automatically reset if condition corrects itself.
Suspect Mode
Automatically reset if condition corrects itself.
Charge System Problem
Cleared by Function Button
Battery Replacement
Cleared by Function Button
Two Hours or Less Battery Life Remaining
Reset when electric is restored and battery charges
Errors will also scroll across the display every 15 seconds. Only one
error at a time will de displayed with an error count also being dis-
played each time.
16

Appendix:
BATTERY SPECIFICATIONS:
Any marine type deep-cycle rechargeable battery can be
used with your NexPump System.
A 105 Amp or greater capacity is recommended.
NOTE: MULTIPLE BATTERIES
Two batteries may be connected in PARALLEL to
increase time on battery power.
DO NOT CONNECT THE BATTERIES IN SERIES AND
CONNECT TO THE NEXPUMP. CONNECTING THE
NEXPUMP TO GREATER THAN 24 VOLTS WILL DAM-
AGE THE UNIT.
The NexPump Unit requires a connected marine type
deep-cycle battery for proper operation. You must
assure the battery is connected while the NexPump Unit
is operating.
NEXPUMP SPECIFICATIONS:
Maximum Input/Output Levels:
Input: AC
120 Volts AC @ 7 amps
240 Volts AC @ 3.5 Amps
Input: DC - 12 VOLTS ONLY
12 Volts DC @ 28 amps
12 Volt Rechargeable Deep-Cycle Battery ONLY
Charge Output:
20 Amps DC
Protected by a 25 Amp ATC Type Fuse
Pump Inputs:
12 Amps @ 12V DC
Protected by a 25 Amp ATC Type Fuse
Operating Temperature:
0ºC~50ºC (32ºF~122ºF)
Storage Temperature:
-10ºC~50ºC (14ºF~122ºF)
IMPORTANT INFORMATION DURING AN EVENT :
During an event we have found that many owners will contin-
uously clear the error conditions and receive redundant notifi-
cation calls. Please review the information below.
1. Electric Failure, Pump Activation (Backup Mode):
a. To prevent notification from occurring over and over; you
can Silence the Alarm, Unplug the Phone Line. If only the
pump activation alarm is occurring, you can Switch to the
Primary Mode for the duration of the event or if your main
electric pump has failed.
2. Sensor Alarms:
a. High Water Alerts should NOT be cleared, however the
NexPump should be allowed to operate under this condi-
tion until Sensor 2 in not longer under water and at that
point can then be cleared. You should only ‘Disable the
Alarm’ if you do not want to hear the beeping.
3. Clearing of Alarms:
Each time you clear an alarm or a notification has already
occurred, the internal Notification system sets a counter for
about an hour for notification NOT to occur. Therefore, if you
clear an alarm before notification has occurred, the notifica-
tion will ONLY occur until the counter has expired given the
error condition still exists.
4. High Water Alert:
You should allow the NexPump to operate without
clearing a high water alarm until Sensor 2 in not longer
in water. You should only ‘Disable the Alarm’ if you do
not want to hear the beeping.
5. Clog Alert with high rate of incoming water:
When the incoming water rate is extremely high, the
NexPump may warn of a Suspected Clog Error. This is indi-
cated with Pump Identifiers 'X' or 'x' and happens in normal
operation. Do not clear this alarm, however monitor the
condition. Once the water rate slows down the condition will
clear automatically. If the NexPump eventually shows a
clogged condition, you will need to clear this alarm.
Clogged condition is indicated with Pump Identifiers 'P' or 'p'.
Important Note: The NexPump will still operate both pumps
during a Clog error ('P' or 'p'), however you will need to clear
the alarm for the unit to return to normal operation.
17

Quick Reference Guide:
Power OFF:
1. Disconnect Battery
a. Disconnect (+) Positive Cable (Red)
b. Disconnect (-) Negative Cable (Black)
c. Verify Battery Reverse Indicator
2. Unplug NexPump’s AC Power Cord
Power ON:
1. Plug in NexPumps AC Power Cord
2. Connect Battery
a. Connect (-) Negative Cable (Black)
b. Connect (+) Positive Cable (Red)
c. Verify Battery Reverse Indicator
Override Mode:
1. Set Override switch to up position
2. Both Pumps should turn on.
3. Battery Life will not be calculated
4. Clog or Vapor lock detection is disabled.
5. Pumps will turn off for 5 seconds every minute to clear
possible Vapor Lock Conditions.
6. Set Override switch to down position to turn pumps off and
return to normal.
Clear Alarm(s):
1. Press Function Button Until ‘C’ appears (1 second).
2. Release Function Button.
3. Display shows ‘Alarm Cleared’ if there are any that can be
cleared, otherwise displays ‘No CLR Alarms’.
Silence Alarm:
1. Press Function Button Until ‘S’ appears (3 seconds).
2. Release Function Button.
3. Display shows ‘Alarm Silenced’
Note: Will be silent for 24 hours and re-enable itself automati-
cally
UnSilence Alarm:
1. Press Function Button Until ‘U’ appears (3 seconds). (A
‘U’ will only appear if the alarm is silenced already)
2. Release Function Button.
3. Display shows ‘Alarm UnSilenced’
Manual Test:
1. Press Function Button Until ‘T’ appears (6 seconds).
2. Release Function Button.
3. Test is scheduled.
Get Serial Number:
1. The NexPumps serial number is located on the rear unit or
proceed to step 2.
2. Press Function Button Until ‘N’ appears (9 seconds).
3. Release Function Button.
4. Display shows SN-NPAxxxxxxxx where ‘xxxxxxxx’
is the serial number
Get Firmware Revision:
1. Press Function Button Until ‘A’ appears (12 seconds).
2. Release Function Button.
3. Display shows revision number in the following format
‘x.xx.xxxx oooo’. The ‘x.xx.xxxx’ is the revision number and
the ‘oooo’ is any options installed.
Phone Monitor:
1. Press Function Button Until ‘M’ appears (24 seconds).
2. Display shows ‘Ph-Monitor ? Y N’.
3. Depress and hold Function Button, display will toggle
between ‘Y’ and ‘N’, release when at correct setting.
Battery Reset:
1. Press Function Button Until ‘R’ appears (18 seconds).
2. Release Function Button.
3. Display shows ‘B-Rst ? xxx AH’.
4. Enter Battery Amp Hours
5. Battery Charge will start.
Stats Information:
1. Press Function Button Until ‘I’ appears (21 seconds).
2. Release Function Button.
3. Display will toggle through NexPump statistics.
Disable Alarm:
1. Press Function Button Until ‘D’ appears (27 seconds).
2. Display shows ‘Alarm Disabled’.
3. Alarm remains disabled for 5 days then automatically re-
enabled
Enable Alarm:
1. Press Function Button Until ‘E’ appears (27 seconds).
2. Display shows ‘Alarm Enabled’.
Check IMPORTANT INFORMATION DURING AN EVENT on
page 17
18

NexPump Code Chart
A - Pump 1, B - Pump 2 - (Page 9)
‘O’ Pump is Off
‘I’ Pump is On
‘A’ or ‘a’ Pump was activated – Backup mode only
‘F’ or ‘f’ Pump Problem
‘P’ or ‘p’ Possible Plumbing Clog error
‘V’ or ‘v’ Possible Vapor Lock
‘X or x’ Suspected Clog Error
‘Y or y’ Suspected Vapor Lock
‘R’ or ‘r’ Pump has over 2500 hours
C - AC Input - (Page 14)
‘O’ Input power is off,
‘I’ Input power is on
D - Sensors - (Page 14)
‘C’ - Sensors are connected & operating normally
‘1’ - Sensor1 is disconnected
‘2’ - Sensor2 is disconnected
‘H’ - Sensor2 is activated (High Water Alert)
‘D’ - Both Sensors are disconnected
E- Battery Status - (Page 7)
‘XX.XX’ Battery voltage in Volts
Normal Voltage Readings ‘12.40-13.20’
‘Disc’ Battery disconnected
Displays when Battery is disconnected or
Battery voltage is below 1.5 volts
‘Rep_’ Check or Replace Battery
E - Auto Notification - (Page 7, 15)
"BUSY" - Notification System Lines Busy
"INUSE" - Phone line is In Use
"DIAL" - Dialing Notification System
"CONND" - Connected to Notification System
"INFOS" - Error Information sent
"NLINE" - No Phone Line Connected
"ANMOD" - Internal Notification System Problem
E - Phone Monitor - (Page 12)
"PHMON" - Phone line not detected in Auto Test
E - Alarm Disabled - (Page 12)
"ALDIS" - Alarm is disabled (Resets in 5 days)
F - Charge Status - (Page 11)
Off’ Charge is off, battery is fully charged
‘Fxx’ Indicates the Full charge mode
‘Txx’ Indicates the Trickle charge mode.
‘Mxx’ Indicates the Maintain Mode
‘Dis’ Charge is disabled.
‘ttS’ The count in seconds when the charge
system will start. This allows time for the battery to be recon-
nected before the charge starts again.
‘Fl_’ Charge system failed, ‘_’ indicates the error code
F - Battery Life - (Page 8)
The number displayed is the approximate time remaining
until the battery is discharged enough that the pumps will no
longer function normally.
F - Fan Problem - (Page 14)
‘Fan’ - Indicates a Case Fan Problem.
G - Mode - (Page 6)
‘P’ - Primary Mode
‘B’ - Backup Mode
‘M’ - Manual Mode
‘E’ - Emergency Mode
G - Function Button - (Page 12)
‘C’ – Clears alarms
‘S’ or ‘U’– Silence or UnSilenceAlarm (Resets in 24 Hours)
‘T’ - Run manual self test
‘N’ – Displays Serial Number
‘A’ – Displays Firmware Revision and Option Code
‘M’ - Phone Monitor
‘R’ - Battery Reset
‘I’ - Stats Info
‘D’ or ‘E’- Disable or Enable Alarm (Resets in 5 days)
H - Pump Mode - (Page 6)
Primary - Switch in UP position
Mode on LCD blinking ‘P’
Backup - Switch in DOWN position
Mode on LCD blinking ‘B’
J - Override - (Page 6, 18)
On - Switch in UP position
Both Pumps On
Off - Switch in DOWN position
Both Pumps Off and in Normal operating mode
NexPump Display Legend
19
(H)
(J)
(G)