GE hybrid heat pump water heater error codes

GE hybrid heat pump water heater code F74

GE states the filter is dirty.

Inspect the air filter for dust loading.

Clean the filter as the owner's manual directs. GE states that if the fault repeats after cleaning, it is a probable refrigerant leak requiring service.

Clean the filter as the owner's manual instructs, then restart. A dirty filter starves the heat pump of air, which is what the code reports.

GE says that if the fault repeats after the filter has been cleaned, it is a probable refrigerant leak and needs service.

How often should I clean the filter on a GE hybrid water heater? Whenever F74 shows or the filter looks loaded with dust; homes with pets or construction dust need it more often.

GE hybrid heat pump water heater code F78

GE states the leak sensor detected water.

Find the source of the water before resetting anything.

Correct the leak, then reset the shut-off valve if the model has one; otherwise call a plumber.

F78 means the leak sensor detected water. Work out where it is coming from, correct it, then reset the shut-off valve if the heater has one, as the owner's manual describes.

What should I do first when F78 shows on a GE hybrid water heater? Look for water around the heater and the pipes. The sensor only reports that it is wet, so find where the water is coming from before you reset anything.

GE hybrid heat pump water heater code F81

GE states the leak sensor battery is low.

Locate the leak sensor and check its battery.

Replace the leak sensor battery.

F81 is the leak sensor's low battery, not a leak. Replace the battery so the sensor can warn you of the next real one.

Does F81 stop the water heater working? It is a battery warning for the leak sensor, but a sensor that cannot report leaks should not be left unpowered.

GE hybrid heat pump water heater code F96

GE states the CTA module is disconnected or its battery is low.

Check whether the CTA module is seated and powered.

Reconnect the CTA module or replace its battery.

F96 means the CTA module is disconnected or its battery is low. Check that it is seated and powered, reconnect it or replace its battery.

What is the CTA module on a GE hybrid water heater? GE's table lists it as a module whose connection or battery the heater monitors; F96 shows when it is disconnected or its battery is low.