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Why does the thermal fuse keep blowing in my dryer?

I have a Whirlpool Roper dryer model RED4100SQ0. The serial number is MT3422615. I have replaced the thermal fuse twice and it runs one cycle and the thermal fuse is blown again and needs to be replaced. What could be causing this?

Tags
Dryers , Whirlpool , Building Supplies
5 Answers from these members:
LYLE W.
by LYLE W. Earned 31,586 community points in Dryers
March 2nd, 2009
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Brad Surovec
Lyle, Thank you for your really good step by step directions. We did previously have blockage in the vent tube and I have cleaned it all including the dryer very well. For some reason even after doing all that you said above, the thermal fuse still blows. We purchased the fuse from appliance parts pros. Could it just be a problem with the fuse?
Claude McDonald
If you figure it out, please share your discovery. I've been fighting this problem off and on for a while with our Whirlpool Duet Dryer for a few years. The battle has involved vent cleanings, replacements, and most recently a move to a new home. I have replaced thermal fuses, thermal cutouts, and the heating element. The blower is not clogged or bound. Air is certainly moving. My most recent attempt has revealed broken/corroded crimps from wire to connectors where some arcing has taken place. I have repaired these connections and ohmed out the element as a precaution. I also checked for continuity between element and casing, to rule out a short. If my thermal cutout keeps welding shut and subsequently blowing the fuse, I am at a loss for why. At this point, I am waiting on the arrival of one last part kit of fuse and cutout before I call this one a lost cause. Is there anything else I could be missing?
kevin johnson
just went through all of the what to do list. I replaced my heat element a couple of months back and some how the element was shorted out. It had a broken insulator causing it to over heat. fixed the insulator with one off of the old heat element and so far so good, if you have replaced the thermal fuse more than once check with a multi meter the continuity of the heat element and the case.
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Jerry Brown
by Jerry Brown Earned 25 community points in Dryers
May 2nd, 2017
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Jerry Brown
by Jerry Brown Earned 25 community points in Dryers
May 2nd, 2017
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Jerry Brown
by Jerry Brown Earned 25 community points in Dryers
May 2nd, 2017
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Nathan Dick
by Nathan Dick Earned 8 community points in Dryers
July 23rd, 2017
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