Manual
49-50300-2  11
CARE AND CLEANING
Anode Rod
Anode rods are designed and installed to protect and 
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The anode rod must be removed from the water heater’s 
tank and inspected annually, and replaced when more than 
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rod.* Note: Artificially softened water will cause the anode 
rod to consume more rapidly.
Due to shock hazard and to prevent accidental water leaks, 
this inspection should be done by a qualified servicer or 
plumber, and requires that the electric power and cold water 
supply be turned off before servicing the anode rod.
NOTICE: Do not remove the anode rod from the water 
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operation with the anode rod removed will shorten the life of 
the glass-lined tank and will void warranty coverage.
Some areas have water conditions that may cause an 
odor to develop in the water heater. Aluminum-Zinc alloy 
replacement rods are available to address the condition.
*NOTE: Failure to replace the anode rod when consumed 
risks voiding the warranty for the tank. Warranty coverage 
for all other components remains intact, and is unaffected 
by this maintenance requirement. The replacement anode 
rod, and the inspection for consumption are not covered by 
warranty.
Additional information for models with an anode 
depletion sensing feature (Anode button on the 
control):
When the depletion-sensing anode rod nears end of life, 
the red light above the ANODE button will illuminate and 
the control will beep and display F16. When this occurs, the 
anode rod must be inspected and replaced if the core wire 
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replace the anode rod as soon as possible to ensure that 
the tank will continue to be protected from corrosion. Call 
GE Appliances Service to order or to replace the anode rod. 
(See page 12 for instructions to change the anode rod.) GE 
Appliances Service: 888.4GE.HEWH (888.443.4394).
Press the ANODE button once to silence the alarm. Once 
replaced, reset the alarm by pressing and holding the 
ANODE button for 10 seconds until the control beeps and 
the LED above the button turns off. 
If an Aluminum-Zinc anode rod is installed to address a 
water odor condition, the anode depletion sensing feature 
must be disabled. If disabled, annual inspections of the 
anode rod are required since the water heater will no longer 
be capable of alerting for a depleted anode rod. 
To disable the feature: 
1.  Upon power-up following an Aluminum-Zinc anode rod 
installation, the control will sound an alarm and F17 will 
display. Press the ANODE button to quiet the alarm. 
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display confirming that the feature has been disabled/ 
enabled. 
To enable the feature if a new anode depletion sensing 
anode rod is installed, follow Step 2 above. 
Note: If the display is blank, press any button to wake the 
control before entering a button combination. 
NOTE: If the water heater has been installed with a 
device that periodically cuts power to the water heater, the 
accuracy of the anode rod depletion sensing feature may 
become compromised and anode rod inspection every 2-3 
years is required.
If the water heater will be inactive for a long period of time 
and the water heater cannot be drained, it is recommended 
to leave the power turned on with the water heater in 
vacation mode to ensure that the feature will continue to 
operate properly while still conserving energy.
NOTE: Refer to the Hydrogen Gas Caution in the 
Operating Instructions (see page 3).
Care and Cleaning
Routine Preventative Maintenance










