Customer Questions and Answers for Start Switch by Whirlpool

Hello TQuinn. The start switch will need to be replaced if it is sticking. As for the running and shutting off, you may be dealing with a bad motor on the unit. If it is getting hot and shutting down, you will need to replace the motor.

Hello Mike. We will need your model number to help you with this. Please post your model number with a new question on the parts page. http://www.appliancepartspros.com/modelnumber_locator.aspx

Hello. You will need to test the thermal fuse, and the door switch on the unit. If good, then it sounds like the timer is bad and will need to be replaced on the unit.

Hello Erle. If both are good, then the timer, wiring, or motor is bad on the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

Jim, the most likely issue is an "open" thermal fuse WP3392519 on the blue wire, it's mounted on the blower housing and opens in the event of a heating issue. You'll need to check the door switch circuit (com to NO should be a "closed" circuit when the switch plunger is pressed in or the door is closed)and the timer should have a "momentary closed circuit, when the dial is pressed in between the BK(black) terminal and the BU(blue) terminal of the timer.

Hello Dale, The motor would be the cause of the unit not working properly. When you push the start switch it just energizes the circuit for the motor to turn on. The Start switch is just a relay. Once the motor starts the centrifugal switch on the motor switches it from start to main. The only other thing that it could possibly be would be a bad connection at the motor of the harness that is connected. Double check all wiring to make sure that there are no loose or broken wires.

Hello Dave_Florida. Based on the information you provided, you will need to order and replace the motor 279827 on the unit.

Hello Mike. If both close when the switch is pressed, then the start switch WP3398095 is good on the unit.

Hello Kim. You will need to check and see if the thermal fuse WP3392519 is bad and will need to be replaced on the unit. It should read closed for continuity on the unit. If it is bad, it will cause the issue you are having. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

OnMyOwn, Based on your post description, Since you can hear the timer, that indicates the timer and the door switch are OK,basically, and a bad start switch is not all that common. Where it me, I would start by checking the thermal fuse on the blower housing WP3392519 if the fuse opened due to a high heat situation or just failed, it would shut off the power to the motor and it won't start or run. Good Luck and Thanks