GE Washer Error Code 357

Error code 357 on a GE washer indicates an Air Outlet Temperature Sensor Fault for the NTC 4 thermistor, which is part of the heat pump system. The control board is receiving a reading from this sensor that is outside the acceptable operating range. This could point to a failed sensor, a wiring issue, or an underlying heat pump problem. The first step is to run Service Mode test 15, the Heat Pump System Test, to get direct thermistor readings.

It is not advisable to continue running the washer while error code 357 is active. The air outlet temperature sensor is part of the heat pump system, and operating without accurate thermal feedback could allow abnormal temperatures to go undetected, potentially causing further damage to the heat pump or other internal components. Address the fault before resuming regular use.

A reset may temporarily clear error code 357 from the display, but if the underlying fault with the NTC 4 thermistor or its wiring is still present, the code will return once the washer attempts to use the heat pump system again. A reset should not be used as a substitute for proper diagnosis. Run Service Mode test 15 to identify the true cause before attempting any repairs.

Some causes of error code 357 are approachable for a knowledgeable DIYer, such as inspecting and reseating the wiring harness and connector at the NTC 4 sensor. However, diagnosing the fault accurately requires accessing Service Mode test 15 to read thermistor values, which involves navigating the washer's diagnostic menu. Replacing the thermistor is a moderate repair, but if the heat pump assembly itself is at fault, professional service is strongly recommended.

Repair costs vary depending on the root cause. If only the NTC 4 thermistor needs replacement, parts typically range from $15 to $60, with professional labor adding $75 to $150 or more depending on your area. If the wiring harness or connectors are the issue, a service call for diagnosis and repair may run $100 to $200. Heat pump assembly repairs or replacements are significantly more expensive and would require a professional estimate.