Potential Causes

• Faulty NTC Thermistor: The thermistor itself might be malfunctioning due to internal component failure or a broken wire connection within the thermistor.
• Wiring Issues: Electrical wiring connections between the NTC thermistor and the control board could be loose, damaged, or corroded, causing an open circuit.

Troubleshooting Steps

Important Note: Due to the potential for electrical components and the need for internal access, these troubleshooting steps are limited.

1. Unplug the Washer: Ensure the washer is unplugged before attempting anything for safety reasons.
2. Consult the Manual: Refer to your Speed Queen washer's user manual for any specific troubleshooting steps related to the NTC thermistor. The manual might have instructions for locating the thermistor (usually near the heater element). However, avoid disassembly or electrical troubleshooting steps yourself.

If the Error Persists:

• Contact Speed Queen Support: Since the error code points towards a critical hardware issue with the temperature sensor, contacting Speed Queen's customer support is highly recommended. They can provide further guidance and determine if the issue requires a qualified technician's expertise.
• Contact a Qualified Technician: Given the potential for electrical components involved with the NTC thermistor, consulting a qualified appliance repair technician is strongly advised. They can diagnose the problem accurately (faulty thermistor, wiring issues) and recommend the appropriate solution (replacement of the NTC thermistor or repair of wiring).

Safety Considerations

• Avoid Electrical Work: Leave any disassembly or repairs to a qualified technician due to potential electrical components.
• Do Not Operate Washer with Error: With this error, avoid using the washer to prevent the washer from malfunctioning due to inaccurate temperature readings.

I hope this information is helpful.