GE Control Board Initialization or Fault State

Microwave display shows 000 and does not respond normally to keypad inputs.

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.

Possible Causes

Control board firmware error, Power surge, Failed keypad-to-board communication

Safety: Disconnect power before removing any panels.

Power cycle: Unplug for 5 minutes, then plug back in. Observe if the display returns to normal clock mode.
Keypad test: Try pressing Clear/Off, then set the clock. If keys do not respond, suspect keypad or control board failure.
Inspect ribbon cable: With the control panel removed, reseat the keypad ribbon cable on the control board.
Replace faulty part: If reseating does not help, replace the control panel/keypad assembly or main control board as indicated by further testing.

Hard 4/5

Main Control Board

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