Abendroth Water Conditioning iSoftenH2O Service manual

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Abendroth Water Conditioning
327 Janesville Avenue • Fort Atkinson, WI 53538
Phone: [phone] • www.abendrothwater.com
High Efficiency On Demand
Water Softeners

TABLE OF CONTENTS
Pre-Installation Instructions for Dealers ........................................3
Bypass Valve ..............................................................4
Installation ................................................................7
Startup Instructions .........................................................8
Programming Procedures ....................................................9
Operating Displays and Instructions ....................................... 10-11
Troubleshooting Guide .................................................. 12-15
Replacement Parts ...................................................... 16-23
Specifications .............................................................24
Warranty ................................................................25
Quick Reference Guide ...............................................Back cover
Your Final Barrier iSoft water softeners are precision built, high quality products. These units will deliver soft water
for many years to come, when installed and operated properly. Please study this manual carefully and understand
the cautions and notes before installing. This manual should be kept for future reference. If you have any questions
regarding your water softener, contact Abendroth Water Conditioning at:
327 Janesville Avenue • Fort Atkinson, WI 53538
Phone: [phone] • Fax: [phone] • www.abendrothwater.com
YOUR WATER TEST
Hardness _________________________ gpg
Iron ______________________________ ppm
pH _______________________________ number
*Nitrates__________________________ ppm
Manganese _______________________ ppm
Sulphur ___________________________ yes/no
Total Dissolved Solids_______________
*Over 10 ppm may be harmful for human consumption.
Water conditioners do not remove nitrates or coliform
bacteria, this requires specialized equipment.

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PRE-INSTALLATION INSTRUCTIONS FOR DEALERS
The manufacturer has preset the water treatment unit’s sequence of cycles and cycle times.
The dealer should read this page and guide the installer regarding hardness, day override, and time of regeneration,
before installation.
For the installer, the following must be used:
• Program Installer Settings: Day Override (preset to 3 days) and Time of Regeneration (preset to 12 a.m.)
• Read Normal Operating Displays
• Set Time of Day
• Read Power Loss & Error Display
For the homeowner, please read sections on Bypass Valve and Operating Displays and Maintenance.
During operation, the normal user display is time of day and gallons per minute.
Flow Rate, Capacity Remaining and Days to a Regeneration are optional displays but are not normally used. Each of
these can be viewed by pressing next to scroll through them. When stepping through any programming, if no buttons
are pressed within 5 minutes, the display returns to a normal user display. Any changes made prior to the 5 minute
time out are incorporated. To quickly exit any Programming, Installer Settings, etc., press set clock. Any changes
made prior to the exit are incorporated.
If desired, two regenerations within 24 hours are possible with a return to the preset program.
To do a double regeneration:
1. Press the regen button once. “REGEN TODAY” will flash on the display.
2. Press and hold the regen button for three seconds until a regeneration begins.
Once the valve has completed the immediate regeneration, the valve will regenerate one more time at the preset.

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The bypass valve is typically used to isolate the control valve from the plumbing system’s water pressure in order to perform control
valve repairs or maintenance. The 1” full flow bypass valve incorporates four positions, including a diagnostic position that allows
a service technician to have pressure to test a system while providing untreated bypass water to the building. Be sure to install
bypass valve onto main control valve, before beginning plumbing. Or, make provisions in the plumbing system for a bypass. The
bypass body and rotors are glass-filled Noryl®and the nuts and caps are glass-filled polypropylene. All seals are self-lubricating
EPDM to help prevent valve seizing after long periods of non-use. Internal “O” Rings can easily be replaced if service is required.
The bypass consists of two interchangeable plug valves that are operated independently by red arrow shaped handles. The
handles identify the direction of flow. The plug valves enable the bypass valve to operate in four positions.
1. NORMAL OPERATION POSITION: The inlet and outlet handles point in the direction of flow indicated by the engraved
arrows on the control valve. Water flows through the control valve for normal operation of a water softener. During
the regeneration cycle this position provides regeneration water to the unit, while also providing untreated water to the
distribution system (Fig. 1).
2. BYPASS POSITION: The inlet and outlet handles point to the center of the bypass. The system is isolated from the water
pressure in the plumbing system. Untreated water is supplied to the building (Fig. 2).
3. DIAGNOSTIC POSITION: The inlet handle points toward the control valve and the outlet handle points to the center of
bypass valve. Untreated supply water is allowed to flow to the system and to the building, while not allowing water to exit
from the system to the building (Fig. 3). This allows the service technician to draw brine and perform other tests without the
test water going to the building.
NOTE: The system must be rinsed before returning the bypass valve to the normal position.
4. SHUT OFF POSITION: The inlet handle points to the center of the bypass valve and the outlet handle points away from
the control valve. The water is shut off to the building. The water treatment system will depressurize upon opening a tap in
the building. A negative pressure in the building combined with the softener being in regeneration could cause a siphoning
of brine into the building. If water is available on the outlet side of the softener, it is an indication of water bypassing the
system (Fig. 4) (i.e. a plumbing cross-connection somewhere in the building).
BYPASS VALVE
NORMAL
OPERATION
POSITION BYPASS POSITION DIAGNOSTIC
POSITION SHUT OFF POSITION
FIGURE 1 FIGURE 3FIGURE 2 FIGURE 4

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GENERAL INSTALLATION & SERVICE WARNINGS
The control valve, fittings and/or bypass are designed to accommodate minor plumbing misalignments. There is a small
amount of “give” to properly connect the piping, but the water softener is not designed to support the weight of the plumbing.
Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A silicone lubricant may be used on black
“O” Rings, but is not necessary. Avoid any type of lubricants, including silicone, on red or clear lip seals.
Do not use pipe dope or other sealants on threads. Teflon®tape must be used on the threads of the 1” NPT inlet and outlet, the
brine line connection at the control valve, and on the threads for the drain line connection. Teflon®tape is not used on the nut
connections or caps because “O” Ring seals are used. The nuts and caps are designed to be unscrewed or tightened by hand
or with the special plastic Service Wrench, #CV3193-02. If necessary pliers can be used to unscrew the nut or cap. Do not
use a pipe wrench to tighten nuts or caps. Do not place screwdriver in slots on caps and/or tap with a hammer.
SITE REQUIREMENTS
• Water pressure – 25-100 psi • Current draw is 0.5 amperes
• Water temperature – 33-100°F (0.5-37.7°C) • The plug-in transformer is for dry locations only
• Electrical – 115/120V, 60Hz uninterrupted outlet • The tank should be on a firm level surface
INSTALLATION
1. The distance between the drain and the water conditioner should be as short as possible.
2. Since salt must be added periodically to the brine tank, it should be in an easily accessible location.
3. It is NOT recommended to install any water conditioner with less than 10 feet of piping between its outlet and the inlet
of a water heater.
CAUTION: To protect the unit in the event of a hot water heater backup, the
manufacturer recommends the use of an expansion tank on the
outlet side of the unit.
4. Do not locate unit where it or its connections (including the drain and overflow lines) will ever be subjected to room
temperatures under 33°F.
5. Do not subject the tank to any vacuum, as this may cause an “implosion” and could result in leaking. If there is a possibility
a vacuum could occur, please make provision for a vacuum breaker in the installation.
6. INLET/OUTLET PLUMBING: Be sure to install Bypass Valve onto main control valve before beginning plumbing. Make
provisions to bypass outside hydrant and cold hard water lines at this time. Install an inlet shutoff valve and plumb to the
unit’s bypass valve inlet located at the right rear as you face the unit. There are a variety of installation fittings available.
They are listed under Installation Fitting Assemblies, page 23-24. When assembling the installation fitting package (inlet
and outlet), connect the fitting to the plumbing system first and then attach the nut, split ring and “O” Ring. Heat from
soldering or solvent cements may damage the nut, split ring or “O” Ring. Solder joints should be cool and solvent cements
WELL WATER INSTALLATION MUNICIPAL INSTALLATION

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should be set before installing the nut, split ring and “O” Ring. Avoid getting solder flux, primer, and solvent cement on any
part of the “O” Rings, split rings, bypass valve or control valve. If the building’s electrical system is grounded to the plumbing,
install a copper grounding strap from the inlet to the outlet pipe. Plumbing must be done in accordance with all applicable
local codes.
7. INSTALLING GROUND: To maintain an electrical ground in metal plumbing of a home’s
cold water piping (such as a copper plumbing system), install a ground clamp or jumper wiring.
NOTE: If replacing an existing softener, also replace the ground clamps/wire. If removing a
softener, replace the piping with the same type of piping as the original to assure plumbing
integrity and grounding.
8. DRAIN LINE: First, be sure that the drain can handle the backwash rate of the system. Solder
joints near the drain must be done prior to connecting the drain line flow control fitting. Leave
at least 6” between the drain line flow control fitting and solder joints. Failure to do this could
cause interior damage to the flow control. Install a 1/2” I.D. flexible plastic tube to the Drain Line Assembly or discard the
tubing nut and use the 3/4” NPT fitting for rigid pipe (recommended). If the backwash rate is greater than 7 gpm, use a 3/4”
drain line. Where the drain line is elevated but empties into a drain below the level of the control valve, form a 7” loop at the
discharge end of the line so that the bottom of the loop is level with the drain connection on the control valve. This will provide
an adequate anti-siphon trap. Piping the drain line overhead <10 ft is normally not a problem. Be sure adequate pressure is
available (40-60 psi is recommended). Where the drain empties into an overhead sewer line, a sink-type trap must be used
with appropriate air gap (see drawing). Run drain tube to its discharge point in accordance with plumbing codes. Pay special
attention to codes for air gaps and anti-siphon devices.
CAUTION: Never insert a drain line into a drain, sewer line, or trap. Always allow
an air gap of 1-1/2” or twice the pipe diameter, whichever is greater,
between the drain line and the wastewater to prevent the possibility
of sewage being back-siphoned into the softener.
TYPICAL DRAIN LINE INSTALLATIONS
INSTALLATION

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9. SAFETY BRINE TANK CONNECTION: Install the 3/8” O.D. polyethylene tube from the Refill Elbow to the
Brine Safety Float valve in the brine tank.
10. OVERFLOW LINE CONNECTION: An overflow drain line is recommended where a brine overflow could
damage furnishings or the building structure. Your softener is equipped with a brine tank safety float which
greatly reduces the chance of an accidental brine overflow. In the event of a malfunction, however, an overflow
line connection will direct the “overflow” to the drain instead of spilling on the floor where it could cause
considerable damage. This fitting is an elbow on the side of the brine tank. Attach a length of 1/2” I.D. tubing
to fitting and run to drain. Do not elevate overflow line higher than 3” below bottom of overflow fitting. Do not
“tie” this tube into the drain line of the control valve. Overflow line must be a direct, separate line from overflow
fitting to drain, sewer, or tub. Allow an air gap as per the drain line instructions.
Connection at Refill Elbow on the control valve Connection at Brine Safety Float in brine tank

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STARTUP INSTRUCTIONS
FLUSHING OF SYSTEM:
To flush the system of any debris and air after installation is complete, please perform the following steps:
1. Rotate bypass handles to the bypass mode (Fig. 2 on page 4) .
2. Turn on inlet water and check for leaks in the newly installed plumbing.
3. Fully open a cold water faucet, preferable at a laundry sink or bathtub without an aerator.
4. Wait two to three minutes or until water runs clear, then turn water off and follow start-up instructions.
System regeneration sequence is in the following order. (To change this sequence, please refer to the Dealer Manual)
1) BRINE TANK REFILL
2) SOFT WATER BRINE MAKING
3) BACKWASH
4) BRINE DRAW AND SLOW RINSE
5) FAST RINSE
6) END (return to service)
The system is now ready for filling with water and for testing.
1. With the softener in the bypass mode (Fig. 2 on page 4) and the control valve in normal operation where the display
shows either the time of day or the gallons remaining, manually add 3” of water to the regenerant tank.
NOTE: If too much water is put into the brine tank during softener start up, it could result in a “salty water”
complaint after the first regeneration.
During the first regeneration the unit will draw out the initial volume of brine/regenerant and refill it with the correct preset amount.
2. With the softener in bypass mode, press and hold the regen button until the motor starts. Release button. The display reads
“FILL” and the remaining time in this step is counting down. Since the regenerant tank was already filled in Step 1, press
regen again and the display will read SOFTENING 240 (During a full regeneration this will be a 4 hour period for salt to
dissolve). Press regen again to put the valve into “BACKWASH.” Once valve has stopped in position, unplug the transformer
so that the valve will not cycle to the next position. Open the inlet handle of the bypass valve very slightly allowing water to fill
the tank slowly in order to expel air.
CAUTION: If water flows too rapidly, media will be lost to the drain.
3. When the water is flowing steadily to the drain without the presence of air, slowly open the inlet valve.
Restore power and momentarily press the regen button to advance the control to the “BRINE” position.
4. The bypass is now in the diagnostic mode (Fig. 3 on page 4). Check to verify that water is being drawn from regenerant
tank with no air leaks or bubbles in the brine line. There should be a slow flow to the drain.
5. Momentarily press regen again until the display reads “RINSE.” There should be a rapid flow to the drain. Unplug transformer
to keep the valve in the “RINSE” position. Allow to run until steady, clear and without air. While the unit is rinsing, load the
brine tank with water softener salt (refer to page 10, Brine Tank Maintenance and Salt). Restore power.
6. Place bypass valve in the normal operating mode (Fig. 1 on page 4) by opening the outlet bypass handle.
Press regen and the unit will return to the service position with time of day being displayed.
7. CONDITIONING OF MEDIA:
To flush any remaining debris and air from the system again:
1. Full open a cold water faucet, preferably at a laundry sink or bathtub without an aerator.
2. Wait two to three minutes or until water runs clear, then turn water off.
3. Turn on hot water and check for air, then turn water off after air is discharged.
8. SANITIZING OF UNIT UPON INSTALLATION AND AFTER SERVICE:
At this time, it is advised to sanitize the softener:
1. Open brine tank and remove brine well cover.
2. Pour 1 oz. of household bleach into the softener brine well.
NOTE: Avoid pouring bleach directly onto the safety float components in the brine well.
3. Replace brine well cover.
Unit sanitizing will be complete when the first cycle is run and the bleach is flushed from the softener.
9. Check time of day. Start-up is now complete.

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Time of day should only need to be set after extended power outages or when daylight saving time begins or ends.
If an extended power outage occurs, the time of day will flash on and off indicating that the time should be reset.
STEP 1 – Press set clock.
STEP 2 – CURRENT TIME (HOUR): Set the hour of the day using +or —buttons. AM/PM toggles after 12.
Press next to go to step 3.
STEP 3 – CURRENT TIME (MINUTES): Set the minutes using +or —buttons. If it is desired to back up to
the previous step press regen button once. Pressing next will exit set clock and return to the general
operating display (page 10).
1. Set time of day:
NOTE: The manufacturer has preset the unit so that the gallons between regenerations
will be automatically calculated.
STEP 1 – Press next and +simultaneously for 3 seconds.
STEP 2 – HARDNESS: Set the amount of hardness in grains per gallon
(default 20) using the +or —buttons. The allowable range is
from 1 to 150 in 1 grain increments.
Press next to go to step 3. Press regen to exit.
STEP 3 – DAY OVERRIDE: The manufacturer has factory set 14 DAYS as the
default. This is the maximum number of days between regenerations.
If this is set to “OFF”, regeneration initiation is based solely on
gallons used. If any number is set (allowable range from 1 to 28), a
regeneration initiation will be called for on that day even if a sufficient
number of gallons were not used to call for a regeneration.
Set Day Override using +or —buttons (3 is recommended):
• set number of days between regeneration (1 to 28); or
• set to “OFF”.
Press next to go to step 4. Press regen if you need to return to the
previous step.
STEP 4 – REGENERATION HOUR: The manufacturer has factory set 12:00 A.M.
as the default. This is the hour of day for regeneration and can be reset
by using +or —buttons. “AM/PM” toggles after 12. The default time is
12:00 a.m. (recommended for a normal household).
Press next to go to step 5. Press regen if you need to return to the
previous step.
STEP 5 – REGENERATION MINUTES: Set the minutes using +or —buttons.
Press next to exit installer programming. Press regen if you need
to return to the previous step. To initiate an immediate manual
regeneration, press and hold the regen button for three seconds.
The system will begin to regenerate immediately. The control may be
manually stepped through the regeneration cycles by pressing regen.
STEP 6 – BACKLIGHT DISPLAY CONTROL (Not available on all models):
Set the display backlight on or off using +or —buttons. In the OFF
position, the backlight will turn off after 5 minutes of inactivity.
2. Programming:
PROGRAMMING PROCEDURES
1
2
3
4
5
6
1 2 3

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OPERATING DISPLAYS AND INSTRUCTIONS
1. GENERAL OPERATION: When the system is operating, one of three
displays may be shown. Pressing next will alternate between the displays.
One of the displays is always the current time of day. The second display
shows the current treated water flow rate through the system in Gallons Per
Minute. The third display is capacity remaining. Capacity remaining is the
gallons that will be treated before the system goes through a regeneration
cycle. The user can scroll between the displays as desired.
If the system has called for a regeneration that will occur at the preset time
of regeneration, the words “REGEN TODAY” will appear on the display.
With the water meter installed, the word “Softening” or “Filtering” flashes
on the display when water is being treated (i.e. water is flowing through
the system).
2. REGENERATION MODE: Typically a system is set to regenerate
at a time of no water use. If there is a demand for water when the system
is regenerating, untreated water will be delivered. When the system begins
to regenerate, the display will change to include information about the
step of the regeneration process and the time remaining for that step to be
completed. The system runs through the steps automatically and will reset
itself to provide treated water when the regeneration has been completed.
3. MANUAL REGENERATION: Sometimes there is a need to regenerate
before the control valve calls for it. This may be needed if a period of
heavy water use is anticipated or when the system has been operated
without salt.
• To initiate a manual regeneration at the next preset regeneration
time, press and release regen. The words “REGEN TODAY” will
flash on the display to indicate that the system will regenerate at
the next regeneration time (set in Programming, steps 4 and 5). If
you pressed the regen button in error, pressing the button again
will cancel the command.
• To initiate a manual regeneration immediately, press and hold the
regen button for three seconds. The system will begin to regenerate
immediately. This command cannot be cancelled.
Once a manual regeneration is initiated, the unit will go into the
BRINE FILL position and subsequent positions thereafter (see Start-Up
Instructions for regeneration sequence), the water filter will deliver water,
but it will be untreated.
4. POWER LOSS AND BATTERY REPLACEMENT: The AC transformer
comes with a 15 foot power cord and is designed for use with the control
valve; the transformer should only be used in a dry location.
In the event of a power outage that is less than 24 hours, the control valve
will remember all settings and time of day. After 24 hours, the only item that
needs to be reset is the time of day and will be indicated by the time of day
flashing. All other settings are permanently stored in the nonvolatile memory.
If a power loss occurs that is less than 24 hours and the time of day
flashes, this indicates that the battery is depleted. The time of day should
be reset and the non-rechargeable battery should be replaced. The battery
is a 3 Volt Lithium Coin Cell type 2032 and is readily available at most
stores. To access battery location, remove front cover (see diagram on
page 16 for battery location).
GENERAL OPERATION DISPLAYS
REGENERATION MODE
MANUAL REGENERATION
BATTERY REPLACEMENT

10 11
5. ERROR MESSAGE: If the word “ERROR” and a number are alternately
flashing on the display record the number and contact Abendroth Water
Conditioning at 920-563-2507 for help. This indicates that the control
valve was not able to function properly.
6. BRINE TANK MAINTENANCE AND SALT: Refill the brine tank as
necessary, making sure at least 1/3 of the brine tank is full at all times.
Without proper salt levels, the water softener may not operate properly.
Because “typical” settings of this water softener include a dry salt storage
feature (no water in brine tank between regeneration), the manufacturer
recommends the use of solar salt for best results. The brine tank is manufactured for the use of solar, pellets or rock
salt. If pellet or rock salt is used, a cleaning of the brine tank every six months is recommended. If the dry salt storage
feature is not being utilized, block salt may be used.
CAUTION: The manufacturer does not recommend the use of any resin cleaners, nor
placement of any resin cleaners into the brine tank. This may be harmful to
the water softener and for human consumption. Consult dealer for proper
cleaning instructions.
ERROR MESSAGE

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PROBLEM CAUSE CORRECTION
1. No display on
PC board
A. No power at electric outlet A. Repair outlet or use working outlet
B. Control valve power adapter not plugged into
outlet or power cord end not connected to PC
board connection
B. Plug power adapter into outlet or connect
power cord end to PC board connection
C. Improper power supply C. Verify proper voltage is being delivered to
PC board
D. Defective power adapter D. Replace power adapter
E. Defective PC board E. Replace PC board
2. PC board does not
display correct time
of day
A. Power adapter plugged into electric outlet
controlled by light switch A. Use uninterrupted outlet
B. Tripped breaker switch and/or tripped GFI B. Reset breaker switch and/or GFI switch
C. Power outage
C. Reset time of day. If PC board has battery
back up present the battery may be depleted.
See front cover and drive assembly drawing
for instructions.
D. Defective PC board D. Replace PC board
3. Display does not
indicate that water is
flowing. Refer to user
instructions for how the
display indicates water
is flowing.
A. Bypass valve in bypass position A. Turn bypass handles to place bypass in
service position
B. Meter is not connected to meter connection on
PC board
B. Connect meter to three pin connection labeled
METER on PC board
C. Restricted/stalled meter turbine C. Remove meter and check for rotation or
foreign material
D. Meter wire not installed securely into three
pin connector
D. Verify meter cable wires are installed securely
into three pin connector labeled METER
E. Defective meter E. Replace meter
F. Defective PC board F. Replace PC board
4. Control valve
regenerates at wrong
time of day
A. Power outage
A. Reset time of day. If PC board has battery
back up present the battery may be depleted.
See front cover and drive assembly drawing
for instructions.
B. Time of day not set correctly B. Reset to correct time of day
C. Time of regeneration set incorrectly C. Reset regeneration time
D. Control valve set at “on 0” (immediate
regeneration)
D. Check programming setting and reset to
NORMAL (for a delayed regen time)
E. Control valve set at “NORMAL + on 0”
(delayed and/or immediate)
E. Check programming setting and reset to
NORMAL (for a delayed regen time)
5. Time of day flashes on
and off A. Power outage
A. Reset time of day. If PC board has battery
back up present the battery may be depleted.
See front cover and drive assembly drawing
for instructions.
6. Control valve does not
regenerate automatically
when the correct button(s)
is depressed and held.
For time clock valves the
buttons are s & t.
For all other valves the
button is REGEN.
A. Broken drive gear or drive cap assembly A. Replace drive gear or drive cap assembly
B. Broken piston rod B. Replace piston rod
C. Defective PC board C. Defective PC board
TROUBLESHOOTING GUIDE

12 13
7. Control valve does not
regenerate automatically
but does when the
correct button(s) is
depressed and held.
For time clock valves the
buttons are s & t.
For all other valves the
button is REGEN.
A. Bypass valve in bypass position A. Turn bypass handles to place bypass in
service position
B. Meter is not connected to meter connection on
PC board
B. Connect meter to three pin connection labeled
METER on PC board
C. Restricted/stalled meter turbine C. Remove meter and check for rotation or
foreign material
D. Incorrect programming D. Check for programming error
E. Meter wire not installed securely into three
pin connector
E. Verify meter cable wires are installed securely
into three pin connector labeled METER
F. Defective meter F. Replace meter
G. Defective PC board G. Replace PC board
8. Hard or untreated
water is being
delivered
A. Bypass valve is open or faulty A. Fully close bypass valve or replace
B. Media is exhausted due to high water usage B. Check program settings or diagnostics for
abnormal water usage
C. Meter not registering C. Remove meter and check for rotation or
foreign material
D. Water quality fluctuation D. Test water and adjust program
values accordingly
E. No regenerant or low level of regenerant in
regenerant tank E. Add proper regenerant to tank
F. Control fails to draw in regenerant F. Refer to Troubleshooting Guide number 12
G. Insufficient regenerant level in regenerant tank
G. Check refill setting in programming. Check
refill flow control for restrictions or debris and
clean or replace
H. Damaged seal/stack assembly H. Replace seal/stack assembly
I. Control valve body type and piston type
mix matched
I. Verify proper control valve body type and
piston type match
J. Fouled media bed J. Replace media bed
9. Control valve uses too
much regenerant
A. Improper refill setting A. Check refill setting
B. Improper program settings
B. Check program setting to make sure
they are specific to the water quality and
application needs
C. Control valve regenerates frequently C. Check for leaking fixtures that may be
exhausting capacity or system is undersized
10. Residual regenerant
being delivered to
service
A. Low water pressure A. Check incoming water pressure – water
pressure must remain at minimum of 25 psi
B. Incorrect injector size B. Replace injector with correct size for
the application
C. Restricted drain line C. Check drain line for restrictions or debris
and clean
11. Excessive water in
regenerant tank
A. Improper program settings A. Check refill setting
B. Plugged injector B. Remove injector and clean or replace
C. Drive cap assembly not tightened in properly C. Retighten the drive cap assembly
D. Damaged seal/stack assembly D. Replace seal/stack
E. Restricted or kinked drain line E. Check drain line for restrictions or debris and
or unkink drain line
F. Plugged backwash flow controller F. Remove backwash flow controller and clean
or replace
G. Missing refill flow controller G. Replace refill flow controller
PROBLEM CAUSE CORRECTION

14
12. Control valve fails to
draw in regenerant
A. Injector is plugged A. Remove injector and clean or replace
B. Faulty regenerant piston B. Replace regenerant piston
C. Regenerant line connection leak C. Inspect regenerant line for air leak
D. Drain line restriction or debris cause excess
back pressure
D. Inspect drain line and clean to
correct restriction
E. Drain line too long or too high E. Shorten length and or height
F. Low water pressure F. Check incoming water pressure – water
pressure must remain at minimum of 25 psi
13. Water running to
drain
A. Power outage during regeneration
A. Upon power being restored control will finish
the remaining regeneration time. Reset time of
day. If PC board has battery back up present
the battery may be depleted. See front cover
and drive assembly drawing for instructions.
B. Damaged seal/stack assembly B. Replace seal/stack assembly
C. Piston assembly failure C. Replace piston assembly
D. Drive cap assembly not tightened in properly D. Retighten the drive cap assembly
14. E1, Err – 1001,
Err – 101 =
Control unable
to sense motor
movement
A. Motor not inserted full to engage pinion,
motor wires broken or disconnected
A. Disconnect power, make sure motor is fully
engaged, check for broken wires, make sure
two pin connector on motor is connected to the
two pin connection on the PC board labeled
MOTOR. Press NEXT and REGEN buttons for
3 seconds to resynchronize software with piston
position or disconnect power supply from PC
board for 5 seconds and then reconnect.
B. PC board not properly snapped into drive bracket
B. Properly snap PC board into drive bracket and
then Press NEXT and REGEN buttons for 3
seconds to resynchronize software with piston
position or disconnect power supply from PC
board for 5 seconds and then reconnect.
C. Missing reduction gears C. Replace missing gears
15. E2, Err – 1002, Err –
102 = Control valve
motor ran too short
and was unable to
find the next cycle
position and stalled
A. Foreign material is lodged in control valve
A. Open up control valve and pull out piston
assembly and seal/stack assembly for
inspection. Press NEXT and REGEN buttons for
3 seconds to resynchronize software with piston
position or disconnect power supply from PC
board for 5 seconds and then reconnect.
B. Mechanical binding
B. Check piston and seal/stack assembly, check
reduction gears, check drive bracket and main
drive gear interface. Press NEXT and REGEN
buttons for 3 seconds to resynchronize software
with piston position or disconnect power supply
from PC board for 5 seconds and then reconnect.
C. Main drive gear too tight
C. Loosen main drive gear. Press NEXT and
REGEN buttons for 3 seconds to resynchronize
software with piston position or disconnect
power supply from PC board for 5 seconds
and then reconnect.
D. Improper voltage being delivered to PC board
D. Verify that proper voltage is being supplied.
Press NEXT and REGEN buttons for 3 seconds
to resynchronize software with piston position
or disconnect power supply from PC board for
5 seconds and then reconnect.
PROBLEM CAUSE CORRECTION
TROUBLESHOOTING GUIDE

14 15
16. E3, Err – 1003, Err –
103 = Control valve
motor ran too long and
was unable to find the
next cycle position
A. Motor failure during a regeneration
A. Check motor connections then Press NEXT and
REGEN buttons for 3 seconds to resynchronize
software with piston position or disconnect
power supply from PC board for 5 seconds
and then reconnect.
B. Foreign matter built up on piston and stack
assemblies creating friction and drag enough
to time out motor
B. Replace piston and stack assemblies. Press
NEXT and REGEN buttons for 3 seconds to
resynchronize software with piston position
or disconnect power supply from PC board
for 5 seconds and then reconnect.
C. Drive bracket not snapped in properly and out
enough that reduction gears and drive gear do
not interface
C. Snap drive bracket in properly then Press
NEXT and REGEN buttons for 3 seconds to
resynchronize software with piston position
or disconnect power supply from PC board
for 5 seconds and then reconnect.
17. E4, Err – 1004, Err –
104 = Control valve
motor ran too long
and timed out trying
to reach home position
A. Drive bracket not snapped in properly and out
enough that reduction gears and drive gear do
not interface
A. Snap drive bracket in properly then Press
NEXT and REGEN buttons for 3 seconds to
resynchronize software with piston position
or disconnect power supply from PC board
for 5 seconds and then reconnect.
18. Err – 1006, Err – 106,
Err – 116 = MAV/
SEPS/ NHBP/ AUX
MAV valve motor ran
too long and unable
to find the proper
park position
Motorized Alternating
Valve = MAV
Separate Source = SEPS
No Hard Water Bypass
= NHBP
Auxiliary MAV = AUX
MAV
A. Control valve programmed for ALT A or B,
nHbP, SEPS, or AUX MAV with out having
a MAV or NHBP valve attached to operate
that function
A. Press NEXT and REGEN buttons for 3 seconds
to resynchronize software with piston position
or disconnect power supply from PC board for
5 seconds and then reconnect. Then reprogram
valve to proper setting
B. MAV/NHBP motor wire not connected
to PC board
B. Connect MAV/NHBP motor to PC board two
pin connection labeled DRIVE. Press NEXT and
REGEN buttons for 3 seconds to resynchronize
software with piston position or disconnect
power supply from PC board for 5 seconds
and then reconnect.
C. MAV/NHBP motor not fully engaged with
reduction gears
C. Properly insert motor into casing, do not force
into casing Press NEXT and REGEN buttons for
3 seconds to resynchronize software with piston
position or disconnect power supply from PC
board for 5 seconds and then reconnect.
D. Foreign matter built up on piston and stack
assemblies creating friction and drag enough
to time out motor
D. Replace piston and stack assemblies. Press
NEXT and REGEN buttons for 3 seconds to
resynchronize software with piston position
or disconnect power supply from PC board
for 5 seconds and then reconnect.
19. Err – 1007, Err – 107,
Err – 117 = MAV/
SEPS/NHBP/AUX
MAV valve motor
ran too short (stalled)
while looking for
proper park position
Motorized Alternating
Valve = MAV
Separate Source = SEPS
No Hard Water Bypass
= NHBP
Auxiliary MAV = AUX
MAV
A. Foreign material is lodged in
MAV/NHBP valve
A. Open up MAV/NHBP valve and check piston
and seal/ stack assembly for foreign material.
Press NEXT and REGEN buttons for 3 seconds
to resynchronize software with piston position
or disconnect power supply from PC board for
5 seconds and then reconnect.
B. Mechanical binding
B. Check piston and seal/stack assembly, check
reduction gears, drive gear interface, and
check MAV/NHBP black drive pinion on
motor for being jammed into motor body.
Press NEXT and REGEN buttons for 3 seconds
to resynchronize software with piston position
or disconnect power supply from PC board for
5 seconds and then reconnect.
PROBLEM CAUSE CORRECTION

16
REPLACEMENT PARTS
2
1
3
5
4
6
FRONT COVER AND DRIVE ASSEMBLY
Item No. Part No. Description Qty.
1FBISCV3540 Black cover 1
FBISCV3540-W Gray cover 1
2FBISCV3107-1 Motor 1
3FBISCV3106-1 Drive bracket & spring clip 1
4 FBISCV3813WP PC board 1
5FBISCV3110 Drive gear, 12 x 36 3
6FBISCV3109 Drive gear cover 1
Not shown FBISCV3186 Transformer, 110V-12V 1
NOTE: Battery Location

16 17
6
8
10
11
7 9
7
12
4
2
3
5
1
13
14
For Final Barrier Models Only
PISTON ASSEMBLY
Item No. Part No. Description Qty.
1FBISCV3005 1” spacer stack assembly 1
FBISCV3430 1.25” spacer stack assembly 1
2FBISCV3004 Drive cap assembly 1
3FBISCV3135 O-ring 228 1
4
FBISCV3011 1” piston assembly downflow 1
FBISCV3011-01 1” piston assembly upflow 1
FBISCV3407 1.25” piston assembly downflow 1
5FBISCV3174 Regenerant piston 1
6FBISCV3180 O-ring 337 1
7FBISCV3105 O-ring 215 1
8FBISCV3556 Screw, 1/4-20x1-1/2 18-8SS 1
9 FBISCCI-00318337 Nut, 1/4-20 HEX 18-8SS 1
10 FBISCV3016 QC2 clamp assembly (includes screw & nut) 1
11 FBISCV3452 O-ring 230 1
12 FBISCV3015 WS1 QC2 Tank adapter assembly (includes O-rings) 1
13 FBISCV3001-04 1” body assembly downflow 1
FBISCV3001-04UP 1” body assembly upflow 1
13
FBISCV3001 1” body assembly downflow 1
FBISCV3001UP 1” body assembly upflow 1
FBISCV3020 1.25” body assembly downflow 1
14 FBISCV3541 Drive backplate 1
REPLACEMENT PARTS

18
BYPASS VALVE
Item No. Part No. Description Qty.
1FBISCV3151 Nut, 1” quick connect 2
2FBISCV3150 Split ring 2
3FBISCV3105 O-ring 215 2
4FBISCV3145 Bypass rotor, 1” 2
5FBISCV3146 Bypass cap 2
6FBISCV3147 Bypass handle 2
7FBISCV3148 Bypass rotor seal retainer 2
8FBISCV3152 O-ring 135 2
9FBISCV3155 O-ring 112 2
10 FBISCV3156 O-ring 214 2
2
4
13
BRINE ELBOW ASSEMBLY
Item No. Part No. Description Qty.
1FBISCV3195-01 Refill port plug assembly 1
2FBISCH4615 Elbow locking clip 1
3FBISCV4144 3/8” Elbow, Parker fitting 1
4FBISCV3163 O-ring 019 1
REPLACEMENT PARTS

18 19
INJECTOR ASSEMBLIES
Item No. Part No. Description Qty.
1FBISCV3176 Injector cap 1
2FBISCV3152 O-ring 135 1
3FBISCV3177-01 Injector screen 1
4FBISCV3010-1Z Injector assembly plug 1
5
FBISCV3010-1A A injector assembly, black
1
FBISCV3010-1B B injector assembly, brown
FBISCV3010-1C C injector assembly, violet
FBISCV3010-1D D injector assembly, red
FBISCV3010-1E E injector assembly, white
FBISCV3010-1F F injector assembly, blue
FBISCV3010-1G G injector assembly, yellow
FBISCV3010-1H H injector assembly, green
FBISCV3010-1I I injector assembly, orange
FBISCV3010-1J J injector assembly, light blue
FBISCV3010-1K K injector assembly, light green
not shown FBISCV3170 O-ring 011, lower *
not shown FBISCV3171 O-ring 013, upper *
* The injector plug and the injector each use one lower and one upper o-ring
WATER METER AND METER PLUG
Item No. Part No. Description Qty.
1FBISCV3151 Nut, 1” QC 1
2FBISCV3003 Meter assembly, includes items 3 & 4 1
3FBISCV3118-01 Turbine assembly 1
4FBISCV3105 O-ring 215 1
5FBISCV3003-01 Meter plug assembly 1
Although no tools are necessary to assemble
or disassemble the valve, the Service Wrench,
(shown in various positions on the valve) is
available to aid in assembly or disassembly.
SERVICE WRENCH - FBISCV3193-02
REPLACEMENT PARTS

20
DRAIN LINE ASSEMBLY 3/4”
Item No. Part No. Description Qty.
1FBISCH4615 Elbow locking clip 1
2FBISCPKP10TS8-BULK Optional insert, 5/8” tube 1
3 FBISCV3192 Optional nut, 3/4” drain elbow 1
4FBISCV3158-02 Drain elbow, 3/4”NPT with O-ring 1
5FBISCV3163 O-ring 019 1
6FBISCV3159-01 DLFC retainer assembly 1
7
FBISCV3162-007 0.7 DLFC for 3/4” elbow
1
FBISCV3162-010 1.0 DLFC for 3/4” elbow
FBISCV3162-013 1.3 DLFC for 3/4” elbow
FBISCV3162-017 1.7 DLFC for 3/4” elbow
FBISCV3162-022 2.2 DLFC for 3/4” elbow
FBISCV3162-027 2.7 DLFC for 3/4” elbow
FBISCV3162-032 3.2 DLFC for 3/4” elbow
FBISCV3162-042 4.2 DLFC for 3/4” elbow
FBISCV3162-053 5.3 DLFC for 3/4” elbow
8FBISCV3331 Drain elbow and retainer assembly
Items 2 and 3, nut and insert are only used with 1/2”
I.D. by 5/8” O.D. polytubing. For other piping material,
the 3/4” NPT is used.
Proper DLFC orientation
directs water flow towards
the washer face with
rounded edge and lettering.
Water
Flow
3/4”
NPT
REPLACEMENT PARTS