Rank: Member
Groups: Registered
Joined: 11/16/2009(UTC)
Posts: 5
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I keep blowing the upper thermostat on my dryer. I have replaced the vent hose, vacuumed out the vent pipe to the outside so the air flow is not blocked. The filter is clean, the air can be felt moving before I reconnect the vent. The vent is routed the same way it has been for 10 years. However, after 2 to 3 loads it goes out again. I have to replace the top and bottom thermostat at the same time (it is only sold in pairs). Is it time to give up trying to fix it and buy a new one? Or what am I missing that keeps the part failing?
Thanks for your HELP!!
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Rank: Advanced Member
Groups: Senior Expert
Joined: 3/29/2009(UTC)
Posts: 11,699
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Hi Gene Three things to do 1. Take off the lint chute and clean it out good. 2. Check the heating element to make sure it is not shorted against the frame. 3. Replace the cycling thermostat, this part here Part number: AP3131939
Then run the dryer with the back cover off and watch to see that the heating element is cycling on and off.
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Rank: Member
Groups: Registered
Joined: 11/16/2009(UTC)
Posts: 5
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Thanks for the photo I think I was putting the wrong one in the wrong place.
I had the one you showed in the photo on the bottom and the other one that is flat faced on top.
What would happen if you use the type one on the top and on the bottom, or do I have to replace them both again with the photo on top and the flat face one on the bottom?:confused:
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Rank: Advanced Member
Groups: Senior Expert
Joined: 11/2/2009(UTC)
Posts: 197
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No ... the cycling thermostat goes on the bottom and connect with your heating element ... The thermal cut off (the one you refer to as the flat face one) goes on the top ... Again check to make sure there is no lint build up in your lint shoot and also make sure your element is not grounded by visual inspection.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 3/29/2009(UTC)
Posts: 11,699
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The photo is the cycling or control thermostat and it goes on the blower cover next to the thermal fuse. On the heater cover are a high temp thermostat and a thermal cut off. If the lower one, the high temp thermostat fails then the upper one, the thermal cutoff will shut down heat so your dryer does not set your house on fire. My impression was that your lower and upper were failing which I think may be due to the failure of the cycling thermostat to turn off the heater on a regular basis (the heater thould cycle, and not be on continuously). If the ones on the heater cover are blown, replace them and the one on the blower cover. See if this photo does not help. Kenmore/Whirlpool/Estate/Roper Dryer Pics (SublimeMasterJW's Appliance Advice)If this does not fix it you may be dealing with wiring/motor problems, but let's hope not.
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