A timer not starting could be the reason your Whirlpool 29 inch electric dryer is not working at all.
Let’s say that you are going to use the dryer, you set the timer on the beginning of a drying cycle, push the start switch and the dryer will not do anything.
Let me show you how to check this part in the dryer. Disconnect the dryer from the wall outlet. Set the dial on the beginning of a drying cycle.
Remove the back of the controls panel. You will need a multimeter or a continuity tester to check for continuity.
Set the multimeter on the lowest scale to read ohms and make sure that the meter is working.
Disconnect the black wire from the timer and take a reading between the terminal that the black wire was connected to and the terminal with the blue wire.
The reading should be close to 0 ohms, if the reading is infinity this means that the contacts in the timer are not closing when they supposed to.
If the timing unit is bad, the solution to this problem is replacing it with a new one.
Order anew timer using the model number or the part number stamped on the part.
To replace it do the following. Remove the knob, remove the holding screws and remove it with all the wires still attached to it.
Place the new one in place, secure it with the holding screws and put the knob in shaft.
Remove the wires one by one from the bad timer and install them on the new one.
Before buying any replacement parts you need to watch the video that explain how to check & replace this part. Once you know how to do this and you are sure that the part is bad. Then you could get the new part and replace it.
Click on the video below and watch it a few times until you know for sure how to check& a timer not starting.
Below are the links to the parts needed for this repair.