Customer Questions and Answers for Dryer Temperature Selector Switch (4-Position) by Whirlpool

Hello Cristy, The starting place is the breaker box. Turn the breaker off for the dryer and then back on. If one side of a double breaker trips, the un-tripped side tends to hold the other side up so you cannot really tell if one side is tripped. Next, go to the receptacle. Unplug the unit and inspect the power cord prongs for burned spots. A burned spot is an indication that the receptacle is worn out and requires replacement. This is an important check since a poor electrical connection can very easily become a fire hazard since a point of high resistance produces heat. If this checks good, remove the terminal block cover so you can physically check for loose wires. If an issue exists in there, you can usually tell from the discoloration from the heat generated from a bad connection. From this point, it appears that you have checked most of the components in the unit, except the centrifugal switch in the motor and the timer. These are both in the circuit and will prevent normal operation if either open the circuit.