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Troubleshooting
Before you call for service....
Save time and money! Review the chart below first and you may not need to call for service.
CAUTION
For your safety, DO NOT attempt repair of electrical wiring, controls, heating elements or other
safety devices. Refer repairs to qualified service personnel.
Problem
OPERATION AND PERFORMANCE
Not enough or no hot water
Water is too hot
Control Panel
The heater is beeping, the
anode light is on (on some
models), and the display says
F70
The heater is beeping and the
display says F41
The heater is beeping and the
screen flashes, F78.
OTHER
Rumbling noise
Squealing/Chirping sound
when drawing hot water
Intermittent EMV motor noise
on integrated mixing valve
models
Water dripping down the
outside of the heater
Relief valve producing
popping sound or draining
Hot water has a rotten egg or
sulfur smell
18
Possible Causes
Water temperature may be set too
low
Cold water inlet temperature may
be colder during the winter months
Leaking or open hot water faucets
Long runs of exposed pipe, or hot
water piping on outside wall
Dip tube damaged
A fuse is blown, circuit breaker
tripped, or electric service to your
home may be interrupted
Inadequate wiring
Manual reset high limit (ECO)
Water Connections to unit reversed • Correct piping connections.
Recirculating System Interference
(if installed)
Water temperature is set too high
Electronic Control has failed
The anode rod is approaching end
of life and it is recommended to
replace it in order to continue to
offer protection from corrosion.
The anode rod is not connected
properly and the water heater may
not be protected from corrosion.
Unit is not receiving 240VAC as
intended.
Water conditions in your home
caused a buildup of scale or
mineral deposits on the heating
elements
In certain usage conditions, noise
may transmit through plumbing
from the integrated mixing valve.
A soft motor noise may be heard
during normal operation due to
movement of control valve.
Hot/Cold water connections or
other parts have loosened
Pressure buildup caused by
thermal expansion to a closed
system
Certain water supplies with high
sulfate content will react with
the anode rod that is present in
all water heaters for corrosion
protection of the tank
What To do
• See the Water Temperature Adjustment and Water Heater
Capacity sections (see pages 4 and 6). If the product has an integrated mixing
valve, turn capacity setting up to "High" or "X-High" to increase available hot
water capacity.
•
This is normal. The colder inlet water takes longer to heat.
• Consider increasing the set temperature as described in the Water Temperature
Adjustment section or increase capacity setting on models equipped with
electronic mixing valve.
• Make sure all faucets are closed.
• Insulate piping.
• Contact your local installer, plumbing contractor, or previously agreed upon
service agency.
• Replace fuse or reset circuit breaker.
• Contact the local electric utility.
• See the Installation Instructions.
• See the Safety Controls section, see page 5.
• Check flow rate is not set too high.
• Insulate piping
• See the Water Temperature Adjustment section.
• Contact your local installer, plumbing contractor, or previously agreed upon
service agency.
• Call for service or follow the instructions on how to replace the anode rod on
page 12. Ensure that the anode depletion sensing anode rod or other GE
Appliances approved anode rod is installed. Installation of an unapproved anode
rod will VOID the warranty.
• Check that the tank is filled completely with water.
• If the tank is full of water and the F41 code persists, contact GE Appliances
service.
• Press anode button to silence alarm.
• Turn off power to water heater (generally at the breaker panel). Then read
Electrical Connections section of the installation Instructions, see page 17, then
contact the installer to verify electrical input to the water heater.
• Remove and clean the heating elements. This should only be done by a
qualified service person or plumbing contractor.
• Increasing user set point or lowering capacity setting may address this condition
on integrated mixing valve models. Consult a plumbing professional to install a
pressure limiting device, if due to high water pressure.
• This noise is normal and does not indicate any issue with product
• Tighten the loose connections. This should only be done by a qualified service
person or plumbing contractor.
• This is an unacceptable condition and must be corrected. See Thermal
Expansion section on page 14. Do not plug the relief valve outlet. Contact a
plumbing contractor to correct this.
• The odor can be reduced or eliminated in most water heaters by replacing
the anode rod with less-active material rod. In some cases, an added step of
chlorinating the water heater and all hot water lines may be necessary, contact
your local water professional or plumber for options and instructions.
Go to GEAppliances.com/waterheater for information on purchasing this
replacement anode rod. A qualified servicer or plumber should do this
replacement. Use of a non-GE Appliances approved anode rod, or operating
the water heater without a GE Appliances approved anode rod will VOID the
warranty.
• In certain cases, increasing the tank temperature to 140°F (60°C) can reduce
this odor issue. Reference the Water Temperature Adjustment section of the
Important Safety Information of this manual for procedure and dangers of
scalding water. Installation of temperature limiting valves can be used to reduce
risk of scalding.
49-6000226 Rev. 6
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