Customer Questions and Answers for Dryer Heating Element by Whirlpool

Hello Tom, You will need to refer to the tech sheet which states F-23 indicates the Exhaust Thermistor is shorted. See TEST #4a, page 6 of the tech sheet. TEST #3 Motor Circuit: This test will check the wiring to the motor and the motor itself. The following items are part of this motor system: – Harness/ – Centrifugal switch connection – Door switch – Thermal fuse – Machine control – Belt/belt switch electronics. 1. Unplug dryer or disconnect power. 2. Access the machine control electronics and measure the resistance across P8-4 and P9-1. If resistance across P8-4 and P9-1 is in the range of 1 to 6 O, replace the machine control electronics. Otherwise, go to step 3. 3. Check the wiring and components in the path between these measurement points by referring to the appropriate wiring diagram. 4. Perform TEST #4b, page 6. If thermal fuse is OK, continue with step 5. 5. Check the belt switch and drive motor. Access the belt switch and drive motor by removing the back panel. Slowly remove the drum belt from the spring loaded belt switch tension pulley, gently letting the pulley down. Remove the white connector from the drive motor switch. 7. Remove the bare copper wire terminal from pin 5 of black drive motor switch. Check for the resistance values of the motor’s Main and Start winding coils as shown on the tech sheet. NOTE: Main and Start winding coils must be checked at the motor. If the resistance at the motor is correct, there is an open circuit between the motor and machine control electronics. Check for failed belt switch. If the Start winding resistance is much greater than 3 O, replace the motor. 9. Check the belt switch by measuring resistance between the two blue wires, while pushing up the belt switch tension pulley. If the resistance reading goes from infinity to a few ohms as pulley arm closes the switch, belt switch is OK. If not, replace the belt switch. If belt switch is OK and there is still an open circuit, check and repair the wiring harness. 10. Door switch problems can be uncovered by following procedure under DIAGNOSTIC: Door Switch; however, if this was not done, the following can be done without applying power to the dryer. Connect an ohmmeter across P8-3 (neutral, white wire) and P8-4 (door, tan wire). With the door properly closed, the ohmmeter should indicate a closed circuit (0–2 O). If not, replace the door switch assembly.