Dryer High Limit Thermostat WP3977767

John from Indianapolis, IN
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver

651 of 834 people found this instruction helpful.

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Heat in dryer very low, would take an hour and half to dry a load

First I called an appliance repair place. They charged me $40 to come out and said "the air vent might be clogged". I snaked it out and really wasn't anything in there. So I started thinking it might be a thermostat. After reading the reviews that others posted here, I said, "how hard can it be"? Thanks to PartsSelect putting a diagram (schematic) of the parts, I could see what I was looking for when I removed the back panel. So I took my nutdrivers out, disconnected the vent hose and removed the 10 or so nuts off the back panel & got it out of the way. Took out the vacuum cleaner and sucked all the lint out. Removed the housing where the heating element was and marked on both thermostats and housing where each wires went. As cheap as PartsSelect had the thermostats priced, I figured why not remove the guesswork by buying the highlimit and cycling thermostats and a new heating element too. One screw in each thermostat and out they came. Swapped wires with new thermostats and put them back. With the heating element...it was all one piece, so no fighting to get the element into an old housing. Just swapped them. Put the back panel on and reconnected the vent hose. Cost to repair: about $100. Time for parts to get to me: 2 days. Time to install new parts: about 10 minutes. Knowing that I have a dryer that runs like new AND saving a TON of money on electric bill....THAT is priceless. Thanks PartsSelect!

Other Parts Used:

Michael from Parker, FL
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver

181 of 197 people found this instruction helpful.

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No heat,thumping when running

Removed front panel, drum,replaced belt,tensioner and worn rollers. Then removed rear panel and replaced heating element and high limit thermostat. While I was there completely cleaned inside of dryer. Repair and replacement of parts was quite easy. Just take your time and don't hurry it.

Other Parts Used:

Dryer Maintenance Kit

Herbert from Holley, NY
Difficulty Level:
Really Easy
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Socket set

88 of 111 people found this instruction helpful.

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dryer did not heat anymore

My husband removed the old (2) thermostats..then installed the new ones...he said the only thing he needed was his battery run screwdriver, and it was really needed!
we are happy with the ordering, delivery, and the ease of replacement of our new parts. Thanks.

Other Parts Used:

Derwin from Waleska, AL
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers

31 of 40 people found this instruction helpful.

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No heat, drum would turn, fan would run.

Ordered all of the thermostats and fuses. Unplugged appliance. Removed back panel. Replaced all items, still did not heat. I removed the 2 screws from the filter housing, and lifted the top. I disconnected the door sensor. I removed the 2 5/16" retaining bolts and removed the front cover, supported the drum and discovered a loose connection on the harness that connects to the drum motor. (Engineered not to heat up unless everything else is functional, including drum rotation.) I reestablished a good connection and buttonned her back up. Now i have spare thermostats.

Other Parts Used:

David from Ravenel, SC
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Screw drivers

30 of 631 people found this instruction helpful.

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Blowing cool air only.

Removed & Replaced heating element, thermostat, thermal fuse, and walla, it's done. Just Three bolts to remove. Less than fifteen minutes work!! Works great!!

Other Parts Used:

Lucio from North Miami Beach, FL
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver, Screw drivers

27 of 625 people found this instruction helpful.

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Running but no heat

I read the repair stories on PartSelect.com and decided to buy the thermostat, fuse, and heating element so I was sure to fix whatever the problem was on the first try. I replaced the thermostat fuse and hi-heat thermostat before finding the heating element was broken. I replaced it and even with my 4 and 6 year old helpers, was finished in 20 minutes. Thanks to the PartSelect schematic, I knew what I was looking for and it was as easy as in the picture. I saved time and money thanks to PartSelect.com and other user comments on the site.

Other Parts Used:

Wilford from Colonial Heights, VA
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Pliers

26 of 615 people found this instruction helpful.

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Dryer not starting

Read the info' about the possible causes, checked out the Thermal fuse with a multimeter found it had blown. Cleared out debris from the blower wheel and ducting, replaced the themostats and fuse. Dryer started up....should be good for another 5 years!

Other Parts Used:

Dave from Hudson, WI
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins

25 of 616 people found this instruction helpful.

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too long to dry

First I removed the two screws that hold the element in place. I then pulled the element out about 3 inches and disconnected the two wires, then connect the two wires into new element, and put the element back in place, and put the back cover, now it getting really hot, and save me a lot of time and money on energy too.

Other Parts Used:

Victor from San Antonio, TX
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver

21 of 22 people found this instruction helpful.

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The Dryer was working normally, just no heat

Very Very Easy all you need is a 1/4 inch nutdriver. 1st remove the screws from the back of the dryer. 2nd you will see a shaft like duct work. remove the 2 screws from this shaftway, lift out the old heating element and replace with the new element. Part select was right on target and fast. 2 days to recieve my order. I expected to have to buy a new appliance. Partselect made it possible to fix it like new for around $80.00

Other Parts Used:

Andrew from Roslyn Heights, NY
Difficulty Level:
Really Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver, Pliers

19 of 22 people found this instruction helpful.

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Questions and Answers

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Gillis

July 20, 2017

How do I remove the old hi-limit thermostat and replace it with this one?

Hello Gillis, one side of the hi-limit goes onto the heater terminal and the other connects to the wire. Replace the old one on the heater leg with the new one. Best of luck with this repair.

26 people found this helpful.

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July 20, 2017

Can I test this with a multi-meter? If so how will I know if it is still in good condition?

Hi Ed, yes, this high-limit thermostat can be tested with a multi-meter tool, and should read closed for continuity. Please let us know if you have any further questions.

21 people found this helpful.

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Jessica

November 29, 2017

Based on my model number (len2000pw1) i need part number 3977767 but the one i took off my dryer is is 3977393 which only has two terminals, therefore, there are only two wires coming out of there. Which part do i need to replace this?

For model number LEN2000PW1

Hi Jessica, Thank you for your question. The part you removed from your dryer, part number 3977393, is part of a thermal cut-off kit. The thermal cut-off turns off the heating component when the dryer overheats, ensuring there is a consistent level of heat at all times. This dryer thermal cut-off kit includes one high-limit thermostat with a limit of 250 degrees Fahrenheit, and one thermal cut-off fuse (309 degrees). This kit also includes flat heaters with jumper wires. If your dryer is not starting properly, shutting off too soon or is taking too long to dry your clothes it could be because it has blown and needs to be replaced. This would be the part you would need to replace and you would replace both parts at the same time. I hope this helps. Thank you and have a great day!

10 people found this helpful.

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Hongwei

November 9, 2017

Not heating. Drum can spin. I changed thermostat, fuse. Did not change high limit thermostat. I used test pencil to test the high limit thermostat, both poles are light on. Is the heating element broken?

For model number LEQ5000KQ1

Hi Hongwei, Thank you for the question. There is a Thermal Fuse and a thermal cut-off fuse. The thermal cut-off fuse is included with a kit with the high-limit thermostat,PartSelect Number PS334299. I suggest testing this fuse. Hope this helps!

9 people found this helpful.

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SUE

November 12, 2017

We have replaced the heating element and the thermostate and still no heat . Please help

For model number NED4600YQ0

Hi Sue, Thank you for your inquiry. If your dryer is not getting enough heat, there are some parts that you will need to check to see which one is causing the issue. You will need to check the thermal cut off kit., the internal bias thermostat, the heating element connection wires, the belt and the door switch. I hope this helps. Thank you and have a great day!

9 people found this helpful.

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Aaron

July 20, 2017

My dryer is not working properly when I have it on “auto dry” but every other setting seems to work. You recommended first to check the vents and the blower but those are all in good condition and no clogging, where should I go to next? Would it be the hi-limit thermo?

Hello Aaron, the most likely reason for the dryer to not have heat, would be a damaged contact in the timer. I hope this helps!

8 people found this helpful.

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Ryan

February 3, 2020

What is the difference between this part an the thermal cut off

For model number Teds740jq1

Hello Ryan, Thank you for the question. The Thermal Cut-Off Kit PartSelect Number PS334299 includes the Thermal Cut Off Fuse and the High-Limit Thermostat. The PartSelect Number PS11742185 Dryer High Limit Thermostat is just the Thermostat on its own. We recommend replacing the fuse and Thermostat together. We hope this helps.

7 people found this helpful.

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