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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?

Dryers , Whirlpool , Building Supplies
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1 Answer from this member:
by LYLE W. Earned 32,171 community points in Dryers
March 2nd, 2009
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?
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