Hi Randy,

The thermistor can definitely cause the dryer to not heat, but if the dryer wasn't heating before the F22 code appeared, you might be dealing with multiple issues. There are several components in the dryer's heating circuit that could be the culprit, including the heating element, high limit thermostat, thermistor, control board, and the centrifugal switch on the motor. To pinpoint the exact cause, you'll need to test these parts with an ohm/volt meter.