Have a Kenmore Elite 649723 Electric Dryer. It runs fine in both timed and autodry modes with no heat (Air Fluff). However, when using heat, the unit stops after 20-30 seconds in all modes. At first it seems like the heating element is overheating and kicking off but that seems weird since I can restart the unit immediately and it will run for another 20-30 seconds. Comment by rbflapjack, posted on Jun 24, 2007 Believe it or not, the problem changed to the start button issue. I was taking off the vent line to make sure it wasn't clogged. I had to move the dryer out a little bit. After disconnecting the vent line, I started the dryer in Air Fluff and it ran fine. I then switched to Normal heat and the dryer stopped. Now it will only run while I depress the start button. Maybe it is this even heat board thing? If so, how do I check it and/or replace it? Thanks
Rbf, the even heat board sits under the consol next to the timer. You could have a dual problem here. On your first post you said the dryer would run for approx 20 to 30 seconds and then shut off. This is a sure sign of a failed thermistor. You want to check it out. If you have to hold the start button in, then I would suspect the even heat board. I have seen this many times. Flip the consol up and inspect it. You will have to slide a putty knife under each end of the consol. You will feel a clip. Push on it and pull up at the same time. The consol will lift up. See if you see any burn marks on the board. Sometimes they look good but are bad. The part number for the board is 8545904. Double check that but Im sure it's right. With out being there and from what you are describing, I would go for the even heat board. But I would also check out the thermistor. Catriver.
Posted on Jun 24, 2007
The first suggestion I have for you is to simply run an Air Fluff cycle with no heat.
If the Air Fluff cycle runs okay then the problem is most likely with the thermistor.
You can try to run the dryer with the vent hose off and see if there is a difference.
The circuit breaker may be tripping because of a fault with the dryer or it may be a fault with the circuit breaker being weak.
From the description you give the circuit breakers trip frequently.
I'd suggest you first try selecting the no heat air fluff cycle and run it to see if the breaker trips. If the circuit breaker doesn't trip in air fluff then there is likely a short in the heating element.
With a clamp-on amp meter you can read the amp draw of the dryer when it is heating. With the motor and element both working you would see approximately 25-26 amperes being drawn. The breaker is rated at 30 amps. If the breaker trips and only 26 amps are being drawn then the breaker is the problem.
Try the air fluff cycle first and see if the breaker will trip. Then with additional details I may be able to help you further.
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I replaced both the even heat board and the thermistor and everything seems to be working great. Great Solution! Thanks!
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