GE Dishwasher Error Code F27

F27 on a GE dishwasher indicates a problem with the inverter or the wiring harness connected to it. The inverter controls the wash motor speed, and this code appears when the control board cannot communicate with it properly. The dishwasher will stop operating until the fault is resolved.

A reset may temporarily clear the F27 code, but it will return as soon as the dishwasher tries to run the wash motor again if the underlying problem has not been fixed. Resetting without repairing the harness or inverter is not a lasting solution. The fault must be addressed at the hardware level to permanently clear the code.

Repair costs depend on whether the problem is limited to the wiring harness or requires inverter replacement. A wiring repair or connector cleaning is generally inexpensive, often in the range of $50 to $150 if done by a technician. Inverter replacement parts and labor combined can range from $150 to $350 or more depending on the specific model and local labor rates.

Start by inspecting the wiring harness that connects to the inverter, looking for loose connectors, damaged wires, or corroded terminals. If the harness is in good condition and all connections are secure, the inverter will need to be replaced. This repair typically requires some disassembly of the dishwasher, so comfort with appliance repair is recommended before attempting it yourself.

No, you should not continue running the dishwasher while F27 is active. The machine has stopped the cycle because it detected a fault in the inverter circuit, and forcing operation could cause further damage to the motor or control board. It is best to leave the dishwasher off until the wiring and inverter have been inspected and repaired.