If the problem with your Whirlpool 29 inch electric dryer is that the timer dial doesn’t move to decrease the selected amount of time, the problem could be a bad timer motor.
The timer uses a timer motor to turn the dial back from the selected time, to the off position. This timer motor is like the motor in a wall clock. When you set the timer dial let’s say at 60 minutes on the regular timed cycle, you have 60 minutes of running time.
It doesn’t matter if the dryer doesn’t run or produce any heat. As long as the timer motor gets the right voltage it will run for the selected amount of time to the off position.
There are three things that could stop the dial from moving to the off position.
1. No electricity reaching the motor
2. The windings in the motor burned
3. The gears in the motor that supposed to turn it to the off position
could be jammed or striped
If the dial doesn't advance to the off position, you need to replace the complete timer assembly.
Maybe you could buy a motor for the timer, but I don't recommend that.
Watch the video below to see how this repair is done.
Below are the links to the parts needed for this repair.
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