GE Dishwasher Error Code F11

F11 on a GE dishwasher indicates that the control board has received a temperature sensor reading that is too low. The sensor involved is a thermistor, which monitors water temperature during the wash cycle. The code can be triggered by a faulty thermistor, damaged wiring, or in some cases a failing main control board.

It is not recommended to continue running the dishwasher while F11 is active. Without accurate temperature sensor data, the dishwasher cannot properly regulate water temperature, which means dishes may not be adequately cleaned or sanitized. Continuing to run cycles with a faulty sensor could also mask the root cause and lead to further component wear.

A reset may temporarily clear the F11 code, but if the underlying problem with the thermistor or wiring is still present, the code will return once the dishwasher runs another cycle. Resetting can be useful to confirm whether the error is intermittent, but it is not a fix. Proper diagnosis of the thermistor and wiring circuit is needed to resolve the fault permanently.

A knowledgeable DIYer can diagnose and often fix F11 by testing the thermistor with a multimeter and inspecting the wiring harness for corrosion or damage. If the thermistor is faulty, replacing it is a straightforward repair. If the main control board needs replacement, the job is more involved but still within reach for someone comfortable working with appliance electronics after disconnecting power.

If only the thermistor needs replacement, parts typically cost in the range of $15 to $50, making it an affordable repair. If the main control board is the culprit, board prices generally range from $100 to $250 or more depending on the model. Adding professional labor can bring the total repair cost to between $150 and $400 in a main board replacement scenario.