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Poorly heating clothes dryer

The dryer has four heat settings: very low, low, medium, and high. Seems like the dryer is always on very low or low and takes a long time to dry. Changing the heat settings does not seem to change the amount of heat in the dryer. Heating element heats to a red glow. There is a thermostat next to the heating element, another about 20 inches directly above it where the heated air enters the drum, and a third thermostat near the exhaust and exhaust fan.

Dryer and vent to outside have been thoroughly cleaned providing a forceful flow of exhaust air.

Can the integrity of the heating element and the three thermostats be checked with an ohm meter? If so, what would the appropriate readings be?

I understand that the heating element only puts out one fourth the amount of heat if the element is shorted to the case. How can one determine if this is the case?

If the exact cause cannot be determined, is there an priority order for troubleshooting the problem?

Bob

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Best way to test the elements and stats is to disconnect each one in turn, and with your meter set on the ohms range ,test each one in turn for continuity, you should get F.S.D.(full scale deflection) on each component.
Another way to test the element, is to bypas the stats, and connect the 240v suplly directly to the element, it should get red hot, but do not leave it on for more than a few seconds..
If it had gone down to earth, then theoretically it should trip the circuit breaker.
Plz rate my solution.
Thanks.

Posted on Dec 25, 2008

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First off.. befor we talk about changing parts you need to verify that your circuit breakers are set properly. Manually push the dryer CB to the off position... and PUSH to off with conviction then turn it back on again. Test your high heat setting once again. If it works you had one of 2 CB's tripped. If it still shows the same symptoms then there are a couple of suspects.

1. The 155 deg thermostat

http://www.repairclinic.com/Appliance-Parts?s=t-L155-%3d%3d&txt=1

2. Possibly one of the two electrical legs of the heating element is open.

http://www.repairclinic.com/SSPartDetail.aspx?s=t-110.86873100-%3d%3dc244i3367&PartID=3367

3. The timer & resistor has a problem.

http://www.repairclinic.com/SSPartDetail.aspx?s=t-110.86873100-%3d%3dc212i2031&PartID=2031

All of the above can be isolated with a meter.

Thanks for using FixYa!

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