Whirlpool Duet Electric dryer won't start. Fault code F31. I followed troubleshooting guide and found thermal fuse blown, replaced, cleaned machine no obstructions or severe lint build up. The duct is clean, too. Ran for 2-3 minutes and stopped again. Now I have code F23 and F31, thermal fuse is blown again. Any advise?
Answer Hello Roberto,
You should unplug the unit and look for burned spots on the receptacle prongs. These are the indication of a loose wall outlet. Then check the contention of the cord to the terminal block in the back of the unit. The F-31 fault code is a "L2 Line Voltage Error" per the tech sheet. As per the tech sheet: F:31 flashes if a low voltage condition (less than 30 V) has been detected. This fault code appears ONLY when in the
Diagnostic Test Mode. Check to see if a household fuse has blown or a circuit breaker has tripped. Confirm the power cord is properly installed and plugged into the power outlet. Check the relay connections on the electronic control. The F-23 fault code is indicating the outlet let thermistor is shorted. See test 4a page 7 of the tech sheet. It should read from 11.5K ohms to 13.5K ohms if the outlet thermistor is a good part.