Dryer Not Heating? Check Dryer Thermal Fuse On Back








If suddenly your clothes dryer has stopped drying your clothing, check the thermal fuse on back. Usually the dryer will STILL work in every aspect EXCEPT it will not dry. This means that it will still “tumble” and it will seem as if it is working properly. You will usually find this out after the dryer has “buzzed” to tell you it is done drying your clothes. You will open up the dryer door expecting dry clothes but they will be just tumbling in the dryer and not getting any heat to dry them.

dryer thermal fuse

What is a thermal fuse and what does it do? A thermal fuse is a small electrical temperature sensitive switch that is made to interrupt electrical flow when heated to their specific rated trip temperature. A thermal fuse is in place for safety. A thermal fuse is similar to an electrical fuse. Thermal fuses are single use safety devices that can’t be reset and must be removed and replaced when it trips.








What would cause the thermal fuse on my dryer to trip? Usually the thermal fuse will trip when the vent system is clogged. This will usually be the most common reason and cleaning out the dryer vent is usually all that is needed to fix this issue and prevent the thermal fuse from tripping again.

location of thermal fuse on dryer

To find and test the thermal fuse on your dryer, it will usually be mounted on the back of the dryer. Carefully unplug the dryer from the wall, slide out the dryer, and remove the back panel (on some dryer models the side panel or top panel will need to be removed: check your dryer owners manual). See the image above for what the thermal fuse will look like and location. Once you find the thermal fuse you will need to test it. You can either use a multimeter or find the way to test your dryers thermal fuse by searching for your specific dryer model online. A thermal fuse for your dryer is going to be from $3 to $9 dollars so don’t worry, it will be cheap to DIY fix!


Dryer Thermal Fuse Test

If you determine the thermal fuse is bad or tripped on your dryer, your best bet is buying a new one online and getting express delivery. Use an appliance parts store or use Amazon and search for the thermal fuse for your dryer.



Parts: Refrigerators, Washers, Dryers, Dishwashers
Appliance Parts for Refrigerators Washers Dryers Dishwashers



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{ 10 comments… read them below or add one }

1 Ashley March 21, 2016 at 6:40 pm

I have a Samsung front loading dryer, model # dv42h5200EW/A3
It is 13 months old, so just out of warranty of course, and will not heat.
I have done troubleshooting, the vent is clear and i have disconnected vent and ran dryer on a timed cycle, high heat, to no avail.
It is not on one of the sensor dry cycles or on a no heat cycle.
I have also unplugged it and that didn’t help either.
I would prefer not to pay and arm and a leg if i don’t have to.
What else can i check myself? I’m not opposed to opening up the dryer, just need to know what I’m looking at or for.

Reply

DIY Project Help Tips 2 DIY Project Help Tips March 21, 2016 at 9:35 pm

Ashley,
Have you checked the thermal fuse?
-RR

Reply

3 george November 4, 2015 at 9:51 pm

I just picked up a used dryer from a appliance store. We plugged it up and it worked fine. It tumbled got hot and the timer worked fine. When I got it home it came on but will not heat up. Any ideas? It’s not hooked up to the vent yet and I can feel the air blowing out fine.

Reply

DIY Project Help Tips 4 DIY Project Help Tips November 5, 2015 at 6:48 pm

George,
Is it possible something became disconnected or came loose when you moved the dryer? When you feel air blowing out it is not HOT air, correct? Everything is working, tumbling, lights up, but NO HEAT? Have you made sure that the power getting to the dryer is the correct voltage? Usually 240V 220V depending on where you live. Is it possible you have the dryer outlet set on a 2 breaker system and possibly one of the breakers is off and one is on? Have you checked the thermal fuse? Checked the electrical block on back to be sure wires are tight and secure? Do you have the correct cord?
-RR

Reply

5 Greg Dobis October 7, 2015 at 10:41 am

Thank you for your response. I had recently changed the vent line so it would not have had time to build up….and it is virtually a straight, direct vent with only about 8″ of duct line. I will recheck to be sure though. What could trip (with high heat) then reset itself 45 mins +/- later and continue to do this?

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DIY Project Help Tips 6 DIY Project Help Tips October 7, 2015 at 5:46 pm

Greg Dobis,
Have you checked for a blockage in the dryer itself? Possible lint build up? If the dryer is heating for 45 min then turning off, but works again a little later, the hi limit thermostat could be faulty. Check with a meter to see that your hi limit thermostat and thermal cut off have continuity.
-RR

Reply

7 Carmen Delgado October 4, 2015 at 3:45 pm

I have a Maytag Neptune model #MDE9700AYW. My son has replaced the thermal fuse twice and after one load it stops getting hot, what is wrong.

Reply

DIY Project Help Tips 8 DIY Project Help Tips October 6, 2015 at 9:56 pm

Carmen,
Check the air ducts and venting. If the ducts are clogged the heat cannot escape and it will overheat and constantly blow the thermal fuse.
-RR

Reply

9 Greg Dobis October 4, 2015 at 2:14 pm

I have a Kenmore HD dryer, model #86405150. It delivers heat and drys clothes for 1 cycle. When that cycle is done, it will not heat up again unless it is left sitting for a while. What might be causing this ‘overheating’ situation which self corrects with idle time?

Reply

DIY Project Help Tips 10 DIY Project Help Tips October 6, 2015 at 10:01 pm

Greg,
You most likely have partially clogged air ducts and venting. Letting the dryer sit for awhile before it will heat again is a hint that the heat is not able to escape and therefore will not heat. Clean out the air ducts and check the vent hose for crimps or clogs.
-RR

Reply

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