GE Washer Error Code Thermistor Error

A Thermistor Error on a GE washer means the ATC thermistor is reading outside its acceptable resistance range of 10K to 120K ohms, indicating an open or shorted condition. The thermistor is responsible for monitoring water temperature during the wash cycle and feeding that data to the control board. When this error occurs, the washer will complete the cycle but without active temperature feedback, which can compromise wash performance.

The washer is designed to complete the wash cycle even when this error is active, so continued use does not pose an immediate safety hazard. However, because the control board no longer receives temperature feedback, the machine cannot verify or regulate water temperature accurately. This means wash results may be inconsistent, particularly on heated cycles, and the underlying fault should be addressed promptly.

A reset may temporarily clear the error code from the display, but the fault will return as soon as the control board reads the thermistor again and detects an out-of-range resistance value. A lasting fix requires correcting the root cause, whether that is a failed thermistor, a wiring fault, or a connector issue. Resetting without repairs is not a long-term solution.

Yes, this repair is approachable for a knowledgeable DIYer with a multimeter. Start by checking the thermistor resistance at the J5 connector; it should read approximately 50K ohms at 77 degrees Fahrenheit. If the reading is outside the 10K to 120K ohm range, inspect the wiring harness and connector before replacing the thermistor. If the wiring and connector check out, the thermistor itself will need to be replaced.

If the thermistor itself is the faulty component, the part typically costs in the range of $15 to $50 depending on the specific model. If professional labor is required, total repair costs including diagnosis and installation generally fall between $75 and $175. Checking the wiring and connector first is worthwhile since those fixes may cost little to nothing beyond time.