Washer shows F40 and may not start or may stop shortly after starting.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty inlet valve thermistor (if equipped), wiring fault to ATC circuit, main control ATC failure

Safety first: Unplug the washer and turn off the water supply.

Step-by-step checks:

1. Verify water temperature: Ensure hot and cold hoses are not reversed at the back of the washer.
2. Inspect inlet valves: Some Admiral models have temperature sensors integrated with the valves. Check wiring and connectors.
3. Test thermistor (if present): Measure the thermistor's resistance at room temperature and compare it to specifications. Replace the valve assembly if out of range.

When to call a technician: ATC circuit faults on the control board usually require professional diagnosis.

Medium 3/5

Water Inlet Valve Assembly

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