Andrew for Model Number LE7680XSW1 My Whirlpool dryer wasn't working so I went on the internet to find out what was wrong. I checked and cleaned the vent and then the checked all the sensors. I found out that the thermal cut-off was no good using a multi-meter. I ordered the replacement kit for my dryer and replaced both thermal and hi-limit sensors and the dryer worked fine for about 3 loads of laundry. I checked the sensors and the new thermal cut-off tripped again? Could it be a bad thermal cut-off?
Answer Hello Andrew, The only thing that will open a thermal fuse is high temperatures. In light of this fact there are only a limited amount of things that can cause them to blow. Missing seals in the unit allowing the heat to be recirculated instead of ducted out, running the dryer in a small room with the door closed, (with no louvers in the door), an excessively long exhaust duct or too many turns in it, or a clogged or crimped (less than 4 inch diameter) exhaust duct can cause this issue. Even a 2 foot section of flexible ducting be hind the unit that crimps off when the dryer is slid back against the wall can cause the issue. While a bad thermal cut-off is possible, it is not a common issue. Read More... Answered by AppliancePartsPros.com | Wednesday, November 19, 2014