Customer Questions and Answers for Thermistor by Whirlpool

Amber, If you replaced the exhaust thermistor on the blower housing WP8577274 and you're still displaying the F22 error code, in the timed dry setting, you'll need to open the console, access the machine control board, disconnect the thermistor wires and check the resistance reading across the wires with a multi meter. If the resistance reading is in range, you'll need to replace the machine control board. if the resistance is incorrect, you'll need to check for a loose connection or brokrn wire between the machine control board and the thermistor.

Hello Gwenn. No, you can not use the other thermistor on this model. The thermistor needed has been permanently discontinued by the manufacturer and we don't know of any source or replacement for the part.

Mark, Unfortunately the thermistor has been discontinued by the manufacturer with no suitable replacement available.

Hello Ted, I'm sorry but this part 307208 has been discontinued by the manufacturer and no satisfactory substitutions have been provided.

Attila, The moisture sensor will most likely be the cause for the unit not drying on the auto cycle but you will also want to make sure that the venting is clear.

Hello Attila. Yes, the thermistor is used for temp control inside the drum. It communicates with the control board.

Hello Mustanger361. It is used to read the temp of the exhaust temp on the dryer. As for Gas vs Elect, there is no way of tell which dries faster.

AKA Texan, There are 2 components other than the thermostats which would cause the heating element not to work. First is the motor and second the timer. The best option is to disconnect the power to the unit and access the heating element. Disconnect one wire that is going to the heating element, preferably the one on the thermostat side. Plug the unit back up and using a multimeter you will want to turn the dryer on and test for 120 vac at the terminal on the heater where the wire was disconnected. What this will do is eliminate the heater element itself and the motor. If there is 120 vac at this point then you know the heater is good and the motor is good because the other 120 vac coming through the thermostats is the timer side of the circuit. If there is not 120 vac at that point then you will want to test the other terminal on the heater and check for 120 vac. If there is not 120 vac then the motor would be bad and if there is 120 vac then the heater would be the issue.

Hello David. Try running the dryer without the vent pipe hooked up. If it still short cycles, replace the gas valve coils on the unit. If the issue continues, check the thermostats.

Hello PASQUALE. Yes, that is normal operation. It sounds like the venting system is clogged or kinked. You will need to check the vent and clean it out. Be sure and clean the vent pipe and the dryer air duct assembly. If the air flow is not good, the unit will retain moist air causing the clothes not to dry. Try running the unit with the vent unhooked from the back of the dryer and see if the dryer works properly.