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Tom Johnston
Tom Johnston, Home Appliance Technician
Category: Appliance
Satisfied Customers: 8007
Experience:  20 years experience
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my clothes dryer wont heat up Ithink it is the thermal fuse

Customer Question

my clothes dryer wont heat up Ithink it is the thermal fuse how do I tell if its bad?
Submitted: 7 years ago.
Category: Appliance
Expert:  Tom Johnston replied 7 years ago.
Check the thermal fuse for continuity.
Customer: replied 7 years ago.
if it is bad will it have no continuity or alot of resistance
Expert:  Tom Johnston replied 7 years ago.
It will have no continuity.You can always take the 2 wires off it and attach them together and try the dryer.
Tom Johnston and 5 other Appliance Specialists are ready to help you
Customer: replied 7 years ago.
now Im not sure if that is the issue I get 9 ohms of resistance when I check the heating element is that normal , i test the fuse and now it seems fine is it safe to run the dryer without the fuse
Expert:  Tom Johnston replied 7 years ago.
Yes it is ok to run the dryer with the fuse bypassed just to see if that is the problem.Check the voltage at the element.
Customer: replied 7 years ago.
bypassing the fuse doesnt make any difference the volt at the element while it running is 0
Expert:  Tom Johnston replied 7 years ago.

Remove one wire from the element and test it to ground for a 120 volts.Do that with both wires. What do you get?

Customer: replied 7 years ago.
with dryer off i get 114.6 from one and 0 from the other with them connected i get 114.6 from each side
Expert:  Tom Johnston replied 7 years ago.
The one you got 0 on follow it.It will lead you to the problem.Both wires have to get 120 for element to heat.
Customer: replied 7 years ago.
It goes inside undernieth to a transformer any ideas?
Expert:  Tom Johnston replied 7 years ago.
Goes inside where?
Customer: replied 7 years ago.
it runs from the element down to what looks like transformer of some sort right behind the exhaust housing
Expert:  Tom Johnston replied 7 years ago.

Are you sure its not the motor?

Customer: replied 7 years ago.
i cant see in there very well but ya I think thats what it is
Expert:  Tom Johnston replied 7 years ago.
Then that is the problem the motor is not sending power to the element.
Customer: replied 7 years ago.
what would cause that? one of the thermastats?
Expert:  Tom Johnston replied 7 years ago.
No the motor switch is bad.
Tom Johnston and 5 other Appliance Specialists are ready to help you
Customer: replied 7 years ago.
Is that easy to replace once i get to the motor
Expert:  Tom Johnston replied 7 years ago.

Yes it is not to hard.As long as the switch on your motor is replaceable if not then you need to replace the motor.

Tom Johnston and 5 other Appliance Specialists are ready to help you
Customer: replied 7 years ago.
ok thanks alot for your help
Expert:  Tom Johnston replied 7 years ago.
You are welcome.