F11
GE
Main Control Board Failure
GE heat pump water heater displays F11 and will not operate normally.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Internal control board fault, power surge damage, burnt relay contacts, failed microcontroller
How to Fix / Troubleshooting
Safety: Turn OFF power at the breaker and verify with a tester.
Steps to address F11:
- Visual inspection: Remove the access panel and inspect the main control board for burn marks, swollen components, or corrosion.
- Check supply voltage: Confirm correct line voltage at the input terminals with a multimeter (typically 240 V for electric models). Incorrect supply can damage the board.
- Reset: Leave power off for at least 5 minutes, then restore power to see if the code clears.
- Replace control board: If F11 persists and other components (sensors, elements, compressor) test good, replace the main control board with the correct GE part number.
Note: Use anti-static precautions when handling electronic boards.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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