GE GN75DNSRSA User manual

ge.com
49-50231 01-08 JR
Water Heaters
Owner’s Manual
Safety Information . . . . . . . . . .2, 3
Operating Instructions
Care and Cleaning . . . . . . . . . . . . . . .7–8
Control Features . . . . . . . . . . . . . . . . . . .4
Error Codes . . . . . . . . . . . . . . . . . . . . . . . .9
Flushing the Heat Exchanger . . . . . .11
Setting Priority
for Multiple Controllers . . . . . . . . . . . . .6
Setting the Temperature . . . . . . . . . . .6
Specifications . . . . . . . . . . . . . . . . . . . .12
Technical Data . . . . . . . . . . . . . . . . . . .14
To Set the Water Heater . . . . . . . . . . .5
To Turn Off Gas to
the Water Heater . . . . . . . . . . . . . . . . . .5
Water Quality . . . . . . . . . . . . . . . . . . . .10
Troubleshooting Tips . . . . . . . . .13
Consumer Support
Consumer Support . . . . . . .Back Cover
Warranty . . . . . . . . . . . . . . . . . . . . . . . .15
Write the model and serial
numbers here:
Model # ________________
Serial # ________________
You can find them on the left side
or the bottom of your water heater.
GN75DNSRSA
GN94DNSRSA
GP94DNSRSA
GN75ENSRSA
GN94ENSRSA
GP94ENSRSA
Indoor and Outdoor Tankless

IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
2
WARNING! For your safety,
the information in this manual must be followed to
minimize the risk of fire or explosion, electric shock,
or to prevent property damage, personal injury or
loss of life.
Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
—WHAT TO DO IF YOU
SMELL GAS
Do not try to light a match, or cigarette,
or turn on any gas or electrical appliance.
Do not touch any electrical switch;
do not use any phone in your building.
Clear the room, building or area of all
occupants.
Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions carefully.
If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
5
4
3
2
1
WARNING: If the information
in this manual is not followed exactly,
a fire or explosion may result causing
property damage, personal injury
or death.
INSTALLER: Leave this manual with the
appliance.
CONSUMER: Retain this manual for future
reference.
C
E
R
T
I
F
I
E
D
D
E
S
I
G
N
®
UPC
ANSI Z21.10.3 • CSA 4.3

WARNING!
■Keep the area around the appliance clear and free
from combustible materials, gasoline and other
flammable vapors and liquids.
COMBUSTIBLE MATERIAL: As pertaining
to materials adjacent to or in contact with
heat-producing appliances, vent connectors, gas
vents, chimneys, steam and hot water pipes and
warm air ducts, shall mean materials made of or
surfaced with wood, compressed paper, plant fibers
or other materials that are capable of being ignited
and burned. Such material shall be considered
combustible even though flame-proofed,
fire-retardant treated or plastered.
■Do not use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect the appliance and to replace
any part of the control system and any gas control
which has been under water.
■Indoor models are equipped with a three-prong
plug for your protection against shock hazard
and should be plugged directly into a properly
grounded three-prong receptacle. Do not cut
or remove the ground prong from this plug.
■Outdoor models must be hardwired to meet
local codes.
■Any alteration to the appliance or its controls can
be dangerous and will void the warranty.
■Always check the water temperature before
entering a shower or bath.
■This appliance does not have a pilot. It is equipped
with an ignition device which automatically lights
the burner. Do not try to light the burner by hand.
■BEFORE OPERATING, smell all around the appliance
area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will
settle on the floor.
■Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, do not try to repair it; call
a qualified service technician. Force or attempted
repair may result in a fire or explosion.
■Properly ground the water heater to conform with
all governing codes and ordinances. Follow details
in the Installation Instructions.
■This appliance must be vented per Installation
Instructions.
WARNING: This unit is not
intended or qualified for use in manufactured
homes, mobile homes or recreational vehicles.
CAUTION: BURN HAZARD. Hot exhaust
and vent may cause serious burns. Keep back from
water heater unit. Keep small children and animals
away from unit.
CAUTION: Hot Water outlet pipes leaving
unit can be hot to touch. Insulation must be used
for hot water pipes below 36″ due to burn risk to
children.
SAFETY BEHAVIORS AND PRACTICES
Consumer Support
Troubleshooting TipsOperating InstructionsSafety Instructions
READ AND FOLLOW THIS SAFETY INFORMATION CAREFULLY.
SAVE THESE INSTRUCTIONS
3
ge.com

Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
4
ON/OFF
HOT WATER TEMP
PRIORITY
INUSE
APPROX WATER TEMP
°F / °C
Operating instructions.
This water heater is one of the most advanced water heaters
available. It provides a continuous supply of hot water at a
preset temperature. This appliance is direct vent, where air
is brought in from the outside and combustion gases are
exhausted to the outside.
While electricity, water and gas supplies are connected,
this water heater produces hot water whenever a hot water
tap is open.
Ignition is electronic. There is no pilot light consuming gas
while the water heater is not being used. The gas burner lights
automatically when the hot water tap is opened and goes out
when the tap is closed.
The temperature of the outgoing hot water is constantly
monitored. The water heater may adjust the water flow in
order to maintain the temperature setting. The water flow
may vary from summer to winter due to the difference in
ground water temperature.
NOTE: We do not recommend installing a remote control
outdoors.
For outdoor unit only, installation of the indoor remote
control is highly recommended. The remote control can set
the temperature within a specific range and can provide
error codes to diagnose any problems.
NOTE: Indoor models have an integrated control
with optional remote controls. Outdoor models have
a remote control intended to be mounted indoors.
In-Use Indicator
Indicates that hot water is being supplied
(i.e. a hot water tap is open).
Temperature Display
Shows the temperature setting. When a fault
is detected, a two-digit error code flashes on
this display.
Thermostat Adjustment
Increases or decreases the temperature
setting.
Priority Indicator
When lit, indicates that the control is setting
the temperature. (Always ON when only one
control is connected.)
Priority Button
When using an optional remote control(s),
the priority can be switched to another
control by pressing its Priority Button when
no hot water is running. This feature is
available with multiple remote controls.
ON/OFF Button
Used to turn the water heater ON or OFF.
Control Features

Consumer Support
Troubleshooting TipsOperating InstructionsSafety Instructions
5
ge.com
Operating Instructions
STOP! Read the safety information above.
Set the thermostat to the lowest setting.
Turn off all electrical power to the appliance using the ON/OFF button.
This appliance is equipped with an ignition device which automatically lights
the burner. Do not try to light the burner by hand.
Locate the manual gas valve on the side of the water heater. Turn the manual
valve clockwise to the full OFF position .
Wait five (5) minutes to clear out any gas. Then smell for gas, including near
the floor. If you smell gas, STOP! and follow “B” in the safety information above.
If you do not smell gas, go to the next step.
Turn the manual gas valve counterclockwise to the full ON position .
Turn on all electrical power to the appliance using the ON/OFF button.
Set the thermostat to the desired setting.
Open a hot water tap. If the appliance will not operate, follow the instructions
“To Turn Off Gas to Appliance” and call your service technician or gas supplier.
See the Installation Instructions for additional information.
10
9
8
7
6
5
4
3
2
1
Manual
Valve
To Turn Off Gas to Appliance
Turn off all electrical power to the appliance using the ON/OFF button.
Set the thermostat to the lowest setting.
Locate the manual gas valve on the side of the water heater. Turn the manual
valve clockwise to the full OFF position .
3
2
1
CLOSEOPEN
FOR YOUR SAFETY, READ BEFORE OPERATING
WARNING: If you do not follow these instructions exactly, a fire or explosion may
result, causing property damage, personal injury or loss of life.
A.This appliance does not have a pilot. It is equipped with
an ignition device which automatically lights the burner.
Do not try to light the burner by hand.
B. BEFORE OPERATING, smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone
in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by hand,
do not try to repair it; call a qualified service technician.
Force or attempted repair may result in a fire or explosion.
D. DO NOT use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control
system and any gas control which has been under water.
OFF ON

Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
6
Setting the temperature.
Setting PRIORITY for
Multiple Controllers
NOTE: If you have one remote, the priority light
is always green.
Press the Priority button on the control.
The green priority light will glow, indicating
that this control is controlling the temperature
and that the water heater is ready to supply
hot water.
The priority can only be changed while no
hot water is running.
Press the + or – buttons to obtain
the desired temperature setting.
The water heater provides water at this
temperature setting until it is changed again
with this or another remote control.
NOTES:
• While any hot water is being provided (in-use
light is green), the temperature setting can only
be adjusted between 98°F and 110°F. If the
temperature is over 110°F, no adjustment can
be made.
• If a newly installed unit has not been powered
for at least 6 hours, the temperature will return
to the default setting of 104°F (40°C) if power is
interrupted.
• There may be a variation between
the temperature displayed on the remote
control and the temperature at the tap
due to weather conditions or the length
of pipe to the water heater.
2
1
PRIORITY
HOT WATER TEM
P
Temperature Ranges
Hot water can be dangerous, especially for infants or children, the elderly or infirm.
There is a potential for scalding by hot water if the thermostat is set too high.
Water temperatures over 125°F (51°C) can cause severe burns or scalding, resulting
in death.
Hot water can cause first-degree burns with exposure for as little as:
3 seconds at 140°F (60°C)
20 seconds at 130°F (54°C)
8 minutes at 120°F (48°C)
Test the temperature of the water before placing a child in the bath or shower.
Do not leave a child or an infirm person in the bath unsupervised.
DANGER
Suggested temperatures are:
• Kitchen: 120°F (49°C)
• Shower: 98°–110°F (37°–43°C)
These temperatures are suggestions only.
Temperatures lower than 98°F (37°C) can be
obtained at the tap by mixing with cold water.
NOTE: The unit can display Celsius or Fahrenheit. Celsius ranges from 37° to 60° and Fahrenheit ranges
from 97° to 140°.
To change the temperature scale from Celsius to Fahrenheit or vice versa, turn off the unit,
then press and hold the ON/OFF button for 5 seconds.
NOTE: Very small flows (a trickle) will not turn on the water heater. If you do not turn the hot faucet on
enough, the water will not be hot. A typical sink faucet that is fully opened is 1.2 GPM—a faucet must
be flowing approximately 0.6 GPM to produce hot water.
AVAILABLE TEMPERATURE SETTINGS
Temp in Fahrenheit (°F) 98 100 102 104 106 108 110 115 120 125 130 135 140
Temp in Celsius (°C) 37 38 39 40 41 42 43 46 49 52 54 57 60
Setting Control to Mute
To eliminate the beeps when keys are pressed or to turn the beeps back on, press and hold both
the + and – buttons until a beep is heard (approximately 5 seconds).
This water heater will attempt to provide hot water at the set temperature even when the water flow is
varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature
setting at a time. The available temperatures for a given model are provided below.

Consumer Support
Troubleshooting TipsOperating InstructionsSafety Instructions
Care and cleaning of the water heater. ge.com
Cleaning the Inlet Filter
It is imperative that control compartments,
burners and circulating air passageways
of the appliance be kept clean.
CAUTION: Before performing
this action, first remove power to the water
heater and be sure to not stand near the
discharge line of the pressure relief valve.
This will prevent a possible scald injury.
Turn off and disconnect electrical
power. Allow water heater to cool.
Shut off water inlet.
Open hot water tap at nearest faucet.
Close outlet valve on unit.
Have a small pan or bucket ready to
catch spilled water.
Remove and clean the water inlet filter
with a small brush. If scale is present,
clean in a white vinegar solution.
Replace water inlet filter.
Remove the front panel by removing
4 screws.
Use pressurized air to remove dust
from the main burner, heat exchanger
and fan blades. Do not use a wet cloth
or spray cleaners on the burner. Do
not use volatile substances such as
benzene and thinners. They may ignite
or fade the paint.
Use soft dry cloth to wipe cabinet.
Open water valves.
Check for leaks.
Connect electrical power and turn on
the unit.
13
12
11
10
9
8
7
6
5
4
3
2
1
Vent System
The vent system should be inspected at
least annually for blockages or damage.
See vent manufacturer-recommended
maintenance and inspection requirements.
More frequent cleaning may be necessary
if the installation is in an area subject to
high levels of airborne dust, sand, etc.
(such as a desert or near sand dunes, etc.)
or in an area with high levels of lint or seed
pods (such as cottonwoods).
INDOOR: Inspect inside joints, condensate
collector, outside intake and exhaust.
NOTE: It is recommended that inlet air
screen be inspected. See Installation
Instructions for details.
7
Water inlet
filter
Water inlet
NOTE: View shown is from under the unit.
Repairs should be performed by a qualified service technician. The appliance should
be inspected annually by a qualified service technician. Verify proper operation after
servicing.
WARNING:
Turn off the electrical power supply
or unplug the unit, and turn off the
manual gas valve and the manual
water control valve whenever
servicing or cleaning the unit.
Motors
Motors are permanently lubricated and do
not need periodic lubrication. Keep fan and
motor free of dust and dirt by cleaning
annually.
Remote Control
Use a soft damp cloth to clean the remote
control. Do not use solvents.

Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
8
Snow Accumulation
Keep the area around the air intake and
flue terminal free of snow and ice. The
appliance will not function properly if the
intake air or exhaust is impeded (blocked
or partially blocked) by obstructions.
Care and cleaning of the water heater.
Winterizing Unit
For cabins, lake homes or any installation
where the unit may be unattended for long
periods of time, the freeze protection built
into the unit will prevent the system from
freezing down to –30°F if electric power
and gas are available. However, if the unit
is to be left unattended for long periods of
time in winter months, it is recommended
to unplug and drain the unit. This will
prevent damage to the unit from freezing
weather and loss of power or gas.
The system can be drained by
the following steps:
Turn off and disconnect electrical
power. Allow water heater to cool.
Shut off water inlet.
Open hot water tap at nearest faucet
to relieve system pressure.
Close outlet valve on unit.
Have a small pan or bucket ready to
catch spilled water.
Remove the water inlet filter and outlet
bleed screw.
Allow the water to completely drain
from the system. Replace the inlet filter
and bleed screw.
To start the system:
Open the inlet water valve and check
for leaks.
Open the outlet water valve.
Plug in or turn on power to the unit.
Open the faucet and check for proper
operation.
When reinstalling the hot water bleed
screw, fully secure it with a wrench.
4
3
2
1
7
6
5
4
3
2
1
Lime/Scale Buildup
WARNING: Before
performing this action, first remove power
to the water heater in order to prevent an
accidental scald injury.
If you are in a hard water area or do not
have a water softener, the system should
be flushed annually or as necessary for
lime scale buildup. See page 11.
If you receive Error Code “LC,” refer to the
procedure Flushing the Heat Exchanger.
Refer to the section on Water Quality to
see if your water needs to be treated or
conditioned.
Visual Inspection of Flame
The burner must flame evenly over the
entire surface when operating correctly.
The flame must burn with a clear, blue,
stable flame. See the parts breakdown of
the burner for location of the view ports.
The flame pattern should be as shown in
the figures to the left.
CAUTION: A qualified service
technician should be used to perform
this check. A sight glass is located on
the burner manifold after the front cover
is removed.
SATISFACTORY
Blue flame Flame
rod
FRONT VIEW
UNSATISFACTORY
Yellow flame
Flame
rod
FRONT VIEW
Bleed screw

9
Consumer Support
Troubleshooting TipsOperating InstructionsSafety Instructions
This water heater has the ability to check its own operation
continuously. If a fault occurs, an error code will flash on the
display of the remote control only when the water is running.
This assists with diagnosing the fault, and may enable you to
overcome a problem without a service call. Please identify the
code displayed when inquiring about service.
WARNING: Some of the checks below may
need to be done by a qualified service technician.
Error codes. ge.com
Error Code Table
ERROR Fault Remedy
02 No burner operation during freeze • Check that the gas is turned on at the water heater, gas meter or cylinder.
protection mode If the system is propane, make sure gas is in the tank.
• Call for service.
10 Air supply or exhaust blockage • Ensure GE-approved venting materials are being used.
•Check that nothing is blocking the flue inlet or exhaust.
•Check all vent components for proper connections.
11 No ignition • Check that the gas is turned on at the water heater, gas meter or cylinder.
If the system is propane, make sure gas is in the tank.
•Ensure appliance is properly grounded.
12 Flame failure • Check that the gas is turned on at the water heater, gas meter or cylinder.
Check for obstructions in the flue outlet. If the system is propane, make sure
gas is in the tank.
•Ensure appliance is properly grounded.
14 Thermal fuse • Call for service.
16 Over temperature warning • Check for restrictions in air flow around unit and vent outlet.
•Check for foreign materials in exhaust piping.
32–72 •Call for service.
LC (00) Scale buildup in heat exchanger • See page 11 for Flushing Procedures.
No code Nothing happens when water flow is activated • Clean inlet water supply filter.
•On new installations, ensure hot and cold water lines are not reversed.
•Ensure you have at least the minimum flow rate required to fire the unit.

10
Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
Water quality.
Care for your water heater should include
evaluation of water quality. If the water exceeds
the target levels provided in the table, you should
treat or condition the water.
If you are in a hard water area, it is recommended
to install a GE water softener prior to the water
heater.
* Source: Part 143 National Secondary Drinking Water Regulations
MAXIMUM LEVEL
Total Hardness Up to 200 mg/L (12 grains)
Aluminum* Up to 0.2 mg/L
Chlorides* Up to 250 mg/L
Copper* Up to 1.0 mg/L
Iron* Up to 0.3 mg/L
Manganese* Up to 0.05 mg/L
pH* 6.5 to 8.5
TDS (Total Dissolved Solids)* Up to 500 mg/L
Zinc* Up to 5 mg/L
Water filter
Water softener

11
Flushing the heat exchanger (error code LC or 00).ge.com
5-gallon pail of
virgin, food-grade
white vinegar (or
virgin, food-grade
citric acid)
3/4″Ball Valve
3/4″Union
Check Valve
Pressure Relief Valve
Pressure Regulator
Circulating Pump
Boiler Drain Valve
Solenoid Valve
S
KEY
Water Heater
GasSuppl
y
V1
V3
V2
V4
H1
H2
H3
Circulating Pump
ColdWaterLine
HotWaterLine
n-line
Filter
I
WARNING: Before performing this action, first remove power
to the water heater in order to prevent an accidental scald injury.
NOTE: GE recommends that this task be performed by a trained service provider.
An “LC” or “00” error code indicates the unit is beginning to have water hardness coat
the heat exchanger and must be flushed. Failure to flush the appliance will cause
damage to the heat exchanger. Damage caused by water hardness is not covered by
the unit’s warranty. After flushing, reset the LC fault code by turning off the power to
the unit and turning the power back on.
Disconnect electrical power to the water heater.
Close the shut-off valves on both the hot water and cold water lines (V3 and V4).
Connect pump outlet hose (H1) to the cold water line at service valve V2.
Connect drain hose (H3) to service valve V1.
Pour approximately 4 gallons of virgin, food-grade white vinegar or citric acid
into pail.
Place the drain hose (H3) and the hose (H2) to the pump inlet into the cleaning
solution.
Open both service valves (V1 and V2) on the hot water and cold water lines.
Operate the pump and allow the cleaning solution to circulate through the water
heater for 45 minutes.
Turn off the pump.
Rinse the cleaning solution from the water
heater by:
a. removing the free end of the drain
hose (H3) from the pail,
b. closing service valve V2 and opening
shut-off valve V4 (do not open shut-off
valve V3),
c. allowing water to flow through
the water heater for 5 minutes,
d. closing service valve V1 and opening
shut-off valve V3.
Disconnect all hoses.
Remove the in-line filter at the cold
water inlet and clean out any residue.
Place the filter back into the unit. See page 7.
Restore electrical power to the water
heater.
13
12
11
10
9
8
7
6
5
4
3
2
1
Consumer Support
Troubleshooting TipsOperating InstructionsSafety Instructions

12
Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
* Minimum and maximum water flow may vary slightly, depending on the temperature setting and the inlet water temperature.
The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value listed is for the purpose of input adjustment.
Specifications.
Model GN75 GN94 and GP94
Minimum Gas Consumption Btu/h 15,000
Maximum Gas Consumption Btu/h 180,000 199,000 (NG)/190,000 (LP)
Hot water capacity (Min.–Max.)* 0.6–7.5 GPM (2.3–28.5 L/min) 0.6–9.4 GPM (2.3–35.5 L/min)
Hot water capacity (35°F rise) 7.5 GPM (28.5 L/min) 9.4 GPM (35.5 L/min)
Default Temperature Setting 120°F (49°C)
(no control)
Remote Control Default 104°F (40°C)
Temperature Setting
Maximum Temperature Setting 140°F (60°C)
Minimum Temperature Setting 98°F (37°C)
Weight Approximately 49 lbs (22 kg) Indoor Units, 46 lbs (21 kg) Outdoor Units
Noise Level 55dB (A)
Electrical
Normal 79 W
Consumption Standby 2.8 W
Anti-Frost Protection 100 W
Minimum Gas Natural Gas 5″WC
Supply Pressure Propane 8″WC
Maximum Gas Natural Gas 10.5″WC
Supply Pressure Propane 13.5″WC
Approved Gas Type Natural Gas or Propane – Ensure unit matches gas type it is being installed on.
Connections Gas Supply: 3/4″MNPT, Cold Water Inlet: 3/4″MNPT, Hot Water Outlet: 3/4″MNPT
Ignition System Direct Electronic Ignition
Electrical Connections AC 120 Volts, 60 Hz.
Water Supply Pressure Minimum Water Pressure: 20 PSI (Recommended 30–80 PSI for maximum performance;
full flow cannot be achieved with 20 psi inlet pressure)
Maximum Water Supply Pressure 150 PSI
Remote Control Non-Polarized Two-Core Cable (Minimum 22 AWG)
Remote Control: DC 12 Volts (Digital)

13
Consumer Support
Troubleshooting TipsOperating InstructionsSafety Instructions
Before you call for service… ge.com
Troubleshooting Tips
Save time and money! Review the chart below first and you
may not need to call for service.
PERFORMANCE Possible Causes What To Do
There is no hot water There is no gas, water or • Make sure gas, water and power are turned on.
when tap is opened electricity flowing to unit.
The system requires • Ensure faucet aerators are clean and faucet flows at least
approximately 0.6 gpm 0.6 gpm of hot water.
minimum flow to activate •During summer months, increase the temperature setting
the heater. at the control or increase the water flow.
Water gets cold when If the flow from the tap was • During summer months, increase the temperature setting
hot water is being used adjusted to lessen it, the flow at the control or increase the water flow.
may have gone below the •Water flow might be increased by cleaning the aerators
minimum required. on the faucets.
White smoke comes out During colder weather, when
of the exhaust the exhaust temperature is much
hotter than the outside air, the
exhaust fumes condense,
producing water vapor.
When a hot tap is Hot water must travel through the
opened, hot water plumbing from the water heater to
does not come out the faucet. The time period for hot
immediately water to reach the fixture is determined
by the amount of water in the plumbing
system between the water heater and the
fixture, water pressure and the flow rate
of the fixture.
After hot water tap is The fan is designed to continue running
turned off, fan on water for a short time after the flow of water stops.
heater continues to run This is to ensure constant water temperatures
during rapid starting and stopping, as well as
exhausting any residual gas flue products
from the unit.
Display shows Control is displaying temperature • Change control to Fahrenheit. See page 6.
temperatures between in Celsius.
37° and 60°.

14
Operating Instructions Safety Instructions
Consumer Support Troubleshooting Tips
Technical data.
PRESSURE DROP CURVE
OUTLET FLOW DATA
GN75 GN94/GP94
GN75
GN94/GP94

15
Consumer SupportTroubleshooting TipsOperating InstructionsSafety Instructions
What Is Not Covered:
For The Period Of: We Will Replace:
One Year Any partof the Tankless Water Heater which fails due to a defect in materials or workmanship.
From the date of the During this limited one-year warranty, GE will also provide, free of charge, all labor and related
original purchase service to replace the defective part.
Five Years Any partof the Tankless Water Heater which fails due to a defect in materials or workmanship.
From the date of the During this limited five-year parts warranty, labor is not included.
original purchase
Ten Years Any partof the heat exchanger which fails due to a defect in materials or workmanship.
From the date of the During this limited ten-year warranty, labor is not included.
original purchase
■Service trips to your home to teach you how to use
the product.
■Improper installation, delivery or maintenance.
■Failure of the product if it is abused, misused, altered,
used commercially or used for other than the intended
purpose.
■Use of this product where water is microbiologically
unsafe or of unknown quality, without adequate
disinfection before or after the system.
■Failures due to poor water quality. See page 10
of this Owner’s Manual for Water Quality Table.
■Replacement of house fuses or resetting of circuit breakers.
■Damage to the product caused by accident, lightning,
fire, flood or acts of God.
■Incidental or consequential damage caused by possible
defects with this appliance, its installation or repair.
■Product not accessible to provide required service.
■Failure of the product installed in a continuous
recirculation system.
■If product removed from original installation location.
■Damages, malfunctions or failure caused by the use
of unapproved parts or components.
This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use
within the USA. If the product is located in an area where service by a GE Authorized Servicer is not available, you may
be responsible for a trip charge or you may be required to bring the product to an Authorized GE Service location for
service. In Alaska, the warranty excludes the cost of shipping or service calls to your home.
Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty
gives you specific legal rights, and you may also have other rights which vary from state to state. To know
what your legal rights are, consult your local or state consumer affairs office or your state’s Attorney General.
Warrantor: General Electric Company. Louisville, KY 40225
GE Tankless Water Heater Warranty.
All warranty service provided by our Authorized Servicer Network.
To schedule service, call 888.HOT.WTER (888.468.9837). Please have
serial number and model number available when calling for service.
Staple your receipt here.
Proof of the original purchase
date is needed to obtain service
under the warranty.
EXCLUSION OF IMPLIED WARRANTIES—Your sole and exclusive remedy is product repair as provided in
this Limited Warranty. Any implied warranties, including the implied warranties of merchantability or
fitness for a particular purpose, are limited to one year or the shortest period allowed by law.

Printed in Japan
Consumer Support.
GE Appliances Website ge.com
Have a question or need assistance with your appliance? Try the GE Appliances Website, any day of the year!
For reater convenience and faster service, you can now download Owner’s Manuals or order parts online.
Schedule Service ge.com
Expert GE repair service is only one step away from your door. Schedule your service at your convenience by
callin 888.HOT.WTER (888.468.9837) durin normal business hours.
Real Life Design Studio ge.com
GE supports the Universal Desi n concept—products, services and environments that can be used by
people of all a es, sizes and capabilities. We reco nize the need to desi n for a wide ran e of physical and
mental abilities and impairments. For details of GE’s Universal Desi n applications, includin kitchen desi n ideas
for people with disabilities, check out our Website today. For the hearin impaired, please call 800.TDD.GEAC
(800.833.4322).
Extended Warranties ge.com
Purchase a GE extended warranty and learn about special discounts that are available while your warranty
is still in effect. You can purchase it on-line anytime, or call 800.626.2224 durin normal business hours.
GE Consumer Home Services will still be there after your warranty expires.
Individuals qualified to service their own appliances can have parts or accessories sent directly to their homes
(VISA, MasterCard and Discover cards are accepted). Order on-line today, 24 hours every day or
by phone at 800.626.2002 durin normal business hours.
Instructions contained in this manual cover procedures to be performed by any user. Other servicing
generally should be referred to qualified service personnel. Caution must be exercised, since improper
servicing may cause unsafe operation.
Contact s ge.com
If you are not satisfied with the service you receive from GE, contact us on our Website with all the details
includin your phone number, or write to: General Mana er, Customer Relations
GE Appliances, Appliance Park
Louisville, KY 40225
Register Your Appliance ge.com
Register your new appliance on-line at your convenience! Timely product re istration will allow for
enhanced communication and prompt service under the terms of your warranty, should the need arise.
You may also mail in the pre-printed re istration card included in the packin material, or detach and
use the form in this Owner’s Manual.