With this thermostat, a dryer's heating element will cut out if the internal temperature reaches 250 degrees Fahrenheit. The element will kick back in when the temperature drops to 190 degrees Fahrenheit. Differential of 60 degrees.
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Troubleshooting
This part fixes the following symptoms:
Too hot
This part works with the following products:
Dryer, Washer Dryer Combo.
This part works with the following products:
Kenmore, Whirlpool, Roper, KitchenAid.
Part# WP3390291 replaces these:
AP6008306, 3390291, 696397
Questions and Answers
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5 questions answered by our experts.
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JOHN
February 21, 2018
High temperature cut off thermostat from a Kenmore dryer. I measure 30 ohms across the terminals. Has it failed? The dryer doesn't seem to heat at all.
For model number 3390291
Hello John, thank you for your question. At room temperature, testing the thermostat should produce a reading of zero. If the reading is something else the thermostat is bad and would need to be replaced. If the appliance is running, but not heating at all (blowing cold air), it is most likely a thermostat issue, or fuse issue. If you could provide the model number of the appliance we can provide more information! I hope this helps!
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Robert
April 27, 2018
I replaced the heating element, the thermal fuse and the high temperature thermostat and still have no heat. Does it matter which prong the red and white stripped go on the heating element and thermostat? Right now the striped one is on the bottom prong on the thermostat and on the prong closest to the drum on the element. Is that right?
For model number LEC6848AQ3
Hello Robert, Thank you for your inquiry. The red and white wire goes on the bottom and the solid red one should be on the top. The other parts to check would be the thermal cut off kit, the internal bias thermostat/cycling thermostat, the terminal and wire kit, the electrode/sensor, and the blower wheel. Also make sure the ducts are clear and your dryer has plenty of space in back to suck in air. Hope this helps!
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Bob
August 16, 2019
My Whirlpool electric dryer seems to be overheating. I have replaced the thermal switch 3977394. it was open instead of n/c.
the other sensors measure a short or show continuity. i believe this is correct.
the dryer still seems to be getting too hot.
I have a laser thermometer. are there some readings i could measure?
how hot should a electric dryer get internally and the exhaust?
For model number LEN3434AW0
Hi Bob, The single most common reason why clothes dryer overheat is restricted airflow. When there's a blockage in the internal duct work, the hot air will become trapped inside the drum where it creates potential fire hazard. I am not sure of what is too hot, but on average a dryer should get 140-155°F on high , so too much higher would be an issue. But you could contact the manufacturer directly for more specific information. Thank you for your question and good luck with your repair!
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Jesse
March 17, 2022
My dryer doesn't turn off in Automatic mode even though the clothes are dry. Is this the part I need to fix it?
For model number LE5200XTW1
Hello Jesse, Thank you for the question. We suggest testing the Dryer Cycling Thermostat. You will find this part attached to the blower wheel housing. With a multimeter you can test the two large terminals on the thermostat, they should read closed for continuity and the two small ones should show an ohms resistance value. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
Press start to dry and it clicks and then nothing starts already replaced the thermal disconnect help it doesn’t start still
For model number MED9700SBO
Hello Ky, thank you for your inquiry. According to our research, we would recommend checking the following parts to fix your issue: The door Switch, part number PS334284, Drive Belt, part number PS11722115, and Thermostat, part number PS11746740. If you require assistance to place an order, please contact customer service. We hope that helps!
Extremely easy! I used this website's part diagrams and videos to find out where the parts were in the dryer. I only needed a 1/4" socket on a screwdriver handle to remove the back of the dryer and the same socket for the screws holding most of the parts on (one needed a phillips screwdriver). I didnt have a ohm tester, so I ordered the heating element, cycling thermostat, thermal fuse and 250f Thermostat, knowing I could return the one(s) I didnt need. Replaced them all and guess what...it still didnt work! So I read some other people's comments and found out there was one more part I hadnt ordered that might be the problem...the THERMAL CUT OFF KIT. It has the 250F thermostat PLUS another (different) Thermal cut off fuse, that attaches several inches above the heating element. I ordered that part, got it the next day, and the Thermal cut off fuse that was in the kit (not available separately) ended up being the solution to my problem! The wire to it was actually fried, so the extra connectors in the kit were perfect, and I just cut and stripped the wire a little and put on the new connector, and the dryer works great.
Removed rear panel after disconnecting the Power.Disconnected the fuse ,thermostat 250f, and replaced them. Then removed the old heater and installaled the new one. Then plugged in the heater and still no heat..So I have decided to replace cycling thermostat and temperature switch,which I ordered yesterday. These are the last two items that you suggest as being a cause.
i took the back of the dryer, and took the part out to repair, sent for it at parts.com. it came in three days. i put the new part in and i have a good dryer again. very simple. the internet was helpful. i am 68 year old lady.
Paulette from Farmington, MO
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
1 of 2 peoplefound this instruction helpful.
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dryer will not,dry clothes,but drum run
Took, back cover out,but first i disconect the electricity,i give a fast look,looking for anything wrong and i saw a thermostar burn out in the element case,the bottom one,a thermostart 250 f. but a did a search in the internet,and found that when a bottom thermostart burn out, the top one had to be change,so i did a continuity text in the top one and was open ,i have it,a used one, change and connect the dryer to the Electrical outlet and (walac)it start the dryer,problem solve
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
Vicki C - May 24, 2019
Verified Purchase
Awesome service
The part ended up not being the only part needed, but was sent super fast and arrived in great shape. Will use this company again as soon as I save enough money for the next part.
★★★★★
★★★★★
THOMAS C - May 7, 2019
Verified Purchase
easy repair.
exact fit part worked as expected
★★★★★
★★★★★
Lori G - January 18, 2019
Verified Purchase
Wrong part
I got this part thinking it was the problem but come to find out the part I need is sold only as a package along with the part I bought by itself. I feel I was totally ripped off! The part I bought was over 40.00 and the kit is just over 50.00. Now in order to fix my dryer I have to buy the kit, the most expensive part I already bought and was told I cant exchange and pay the difference for the kit. I feel I was misled and should have at least been shown the kit before I bought this part. Not being an appliance expert I would've paid the extra 10 and got the kit to begin with. Now I would rather spend hundreds of dollars on a new dryer then give you people another penny!!
★★★★★
★★★★★
James H - November 6, 2018
Verified Purchase
Easy repair once you knew how to replace it. Information on my model dryer was not available on the web.
Part was over priced and took over a week to receive it. Will probably not order from your site again. Sorry!
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