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11741405-1-S-Whirlpool-WP3387134-Thermostat, Internal-Bias
11741405-1-S-Whirlpool-WP3387134-Thermostat, Internal-Bias 11741405-2-S-Whirlpool-WP3387134-Thermostat, Internal-Bias 11741405-3-S-Whirlpool-WP3387134-Thermostat, Internal-Bias http://www.partselect.com/Schematics/Maytag/RSDYZ2AA.gif

Thermostat, Internal-Bias

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PartSelect Number PS11741405
Manufacturer Part Number WP3387134
Manufactured by Whirlpool

A cycling thermostat is in tune with the temperature of your dryer and regulates it in order to maintain a certain temperature. This thermostat reaches a temperature of 155 degrees and will then turn off and then on again once it has dropped by 25 degrees. If your dryer is not giving off enough heat, is over-heating, is not turning on, or is having issues with the timer functionality, this could indicate an issue with the thermostat. The installation of the cycling thermostat is simple and the only tool required is a 1/4 inch nut driver (and gloves for safety).

This part works with the following brands: Whirlpool, Kenmore, Maytag, KitchenAid, Roper, Estate, Crosley, Inglis, Amana, Admiral, Magic Chef, Jenn-Air.

This part works with the following products: Dryer, Washer Dryer Combo.

This part fixes the following symptoms:

  • No heat or not enough heat.
  • Takes too long to dry.
  • Will Not Start.
  • Timer will not advance.
  • Too hot.
  • Shuts off too soon.
  • Will not shut off.
  • Will not tumble.

Videos For installing this part.

Questions & Answers

Ask our experts a question on this part and we'll respond as soon as we can.

Most Helpful

Question:

I’m not sure how often this happens because it hasn’t happened to me or anyone I know before. But our dryer seems to be getting too hot during cycles. The clothes are way too hot when they come out, even on the lower settings. The heater element is still cycling on and off though which is think is normal. I’ve already checked the flow and the vents and everything seems to be square there. What would you recommend I check next. Do you think it’s the thermostat?

Kealan
Answer:

Hi Kealan, we recommend trying to dry a load with the vent unhooked from your dryer. If you are still experiencing these symptoms you could have a faulty dryer cycling thermostat WP3387134. I hope this helps!

5 people found this helpful.
Question:

My dryer is turning on and “working” but it is not heating properly. It is a gas dryer and it doesn’t seem to have a problem igniting. What should I check?

Leo
Answer:

Hi Leo, we recommend testing the coils 279834 to see if they are faulty. You can test them using a multi-meter tool. Please let us know if you have any further questions.

5 people found this helpful.

Most Recent

Question:

My dryer would get too hot and overheat. I would need to turn it off to cool down and restart. We replaced the thermostat, and internal-bias and thermal cut-off kit(but my husband did not use the new red wire in the kit) dryer worked fine for a few minutes with heat and now no heat at all. Suggestions? Thanks

Tracie for model number LTE6234DQ0
Answer:

Hi Tracie, Thank you for your inquiry. If your husband did not use the red wire in the thermal cut-off kit, that may be causing the issue. I would also check the heater to see if that is working correctly as well. I hope this helps. Thank you and have a great day!

Question:

Is there a way to test the thermal interna bias switch to be sure it is the problem

Jerry for model number Ler7646ez2
Answer:

Hello Jerry, thank you for contacting us. 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. We hope this helps and good luck with the repair!

2 people found this helpful.
Question:

My dryer is taking too long to dry the clothes in it and I am not over filling it. My friend suggested a blockage but we already checked for that. We also tried using the different settings and the only one that seems to be buggy and not working is the highest setting. So do you have any suggestions of parts to check or tests to try to fix this.

Dylan
Answer:

Hi Dylan, we recommend testing the temperature coming from the dryer when on high heat, which should be about 110 (low end) to 160 (high end) degrees. If your dryer is cycling before it hits the 150 degrees, you most likely have a faulty cycling thermostat. This can be tested with a multi-meter with temperature. Best of luck with this repair!

4 people found this helpful.

Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 3.7 / 5.0, 146 reviews What's this?
 

1 of 1 people found this instruction helpful

Parts Used:
  • Thermostat, Internal-Bias
Level of Difficulty: A Bit Difficult
Time to do repair: 1- 2 hours
Tools: Screw drivers, Socket set
Customer: Jon from SIMI VALLEY, CA

Pushing start button made buzzing sound but dryer didn't start.

The repair video provided for this model 110.97584810 gave erroneous info. It says to remove the back vent cover. The back on this model is not removable. I wasted an hour trying to remove back and top of dryer before discovering that the bottom front panel below the door pops off. Then the cover of the blower must be removed by removing two screws. The thermostat part can then be accessed and replaced as shown in the video. You'll need a 1/4" rachet to remove the screws as there isn't space to use a nut driver. Note that the statement in the video "This repair is done all from the back" is completely wrong. It is done entirely from the front. It can be done without even moving the dryer.

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Easy
Time to do repair: 30 - 60 mins
Tools: Screw drivers
Customer: Michael from LAKE FOREST, CA

Dryer not heating after 5-10 minutes

Remove the dryer door hinges from whichever side they are attached to.Remove the two plastic tabs on the opposite side from hinges. Tilt the front panel forward and lift to remove. All the parts are located in the bottom front side of dryer. Two screws remove coil valve cover, the coils slide upward for removal. One coil has two prongs, one has three, replace them in correct positions and reattach cover. One screw holds igniter in place, remove and unplug old one, carefully install new one so not to damage it. Thermostat has one screw holding it in, remove and unplug four wires, remember to plug each wire into new thermostat before removing the next one so you don't wire it incorrectly. Reinstall front panel of dryer and you're done.

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Easy
Time to do repair: More than 2 hours
Tools: Nutdriver, Pliers, Screw drivers
Customer: Matthew from INDIANAPOLIS, IN

Low heat, too long to dry, seal loose and deformed

Thermostats go right in after removing the back. Drum felt seal manufacturer's written instructions and diagram were not clear. The projecting part in the middle of the felt needs to cover the rear drum edge to prevent metal-to-metal contact of the spinning drum with the rear inside bulkhead. The PartSelect video that shows this cannot be viewed in my web browser, Chrome. User the Explorer browser to be able to see the videos to see how to do it. The front panel screw boltclips were loose. Tape them in place before repositioning the front panel. The time to repair included letting the seal adhesive/glue dry. Let it dry completely outdoors since it is stinky.

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: Less than 15 mins
Tools: Nutdriver, Screw drivers
Customer: Ricardo from JOLIET, IL

Only cold was blowing

I take me less then 15 min easy to change parts all you need is a screwdriver and replace the parts save me some good money thanks.??

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Very Easy
Time to do repair: 15 - 30 mins
Tools: Nutdriver
Customer: john from kennedy, NY

Our dryer wouldnt heat

it was very easy just had to take two nuts off and wires and reapply

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1 of 1 people found this instruction helpful

Parts Used:
  • Thermostat, Internal-Bias
Level of Difficulty: Easy
Time to do repair: 30 - 60 mins
Tools: Screw drivers, Socket set
Customer: Michael from LAKE FOREST, CA

Heat stopped after a few minutes

Read this site and saw many fixed the problem with a new thermostat. Ordered one and it was simple to replace. Just removed the back panel of the dryer and the thermostat is right there. Two screws to remove it, swap the four wiring plugs onto the new one, reinstall it. Unfortunately that didn't fix it so went back online and ordered the coil kit, another common solution. Removed front of dryer by removing the two screws the hold the lint trap onto the top and the two hinge plate screws on back of dryer to tilt the top up ward and backward. Removed two mounting screws on inside of dryer front and slip front panel upward to remove. The coils are right in the front down at the bottom left of dryer.Used an offset screwdriver to remove the two screws holding them in place. They slide right out, one has two prongs, one has three. Replace them with the new coils and put them back in place. Reassembled and everything works now. Grand total of eight screws removed and replaced, pretty simple. I'd recommend buying two or three parts if you see several parts as possibilities for a repair. Easier than doing it the dummy way like I did!

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: 15 - 30 mins
Tools: Socket set
Customer: Dawn from BAYVILLE, NJ

Only had one level of height and the timer would not move.

I followed the video that you had for each part and they were both in the same area. Finished in 20 min. It did not fix the timer from moving again but I do have different heat levels.

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Very Easy
Time to do repair: Less than 15 mins
Tools: Socket set
Customer: kerry from OLEAN, NY

Dryer taking a long time to dry clothes.

There is a video that explains in full detail how to install. Unplug dryer. Remove screws to take back of dryer back off. Remove wires from part. Remove screw holding piece in place. Exchange old part for new part and screw back into place. Put wires back in part( they just snap into place) Put back to dryer back on with screws.

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1 of 1 people found this instruction helpful

Parts Used:
  • Thermostat, Internal-Bias
Level of Difficulty: Really Easy
Time to do repair: 30 - 60 mins
Tools: Nutdriver, Screw drivers
Customer: charles from cuba, MO

Dryer not getting clothes dry

removed door and front panel this exposed all the control devices I changed out the thermostat ndn repaired the dryer

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: 1- 2 hours
Tools: Nutdriver, Screw drivers
Customer: Mark from MILPITAS, CA

Timer not advancing irratic heating

Gas Dryer, bought used over ten years ago. Timer not advancing, so I came to the site to check prices on a timer. Looked at troubleshooting guide and determined problem was most likely thermal fuse and not timer. Because thermostat was also suggested as potential problem, I bought that also. Figured it was cheap enough that since I had to go through aggravation of pulling dryer out, I only wanted to do it once,Pulled dryer out and unplugged it. Turn off gas valve, dis connect gas line at dryer with crescent wrench. Pull back panel using screw driver. Replace both parts. Clean lint from dryer, sweep area behind dryer and reassemble. About 40 minutes. Tested dryer, could feel heat, so A-ok. But, not really. Timer still not advancing, heat erratic. So, ordered coil kit. Unplug dryer. Remove 2 short phillips screws under lint trap door , pry top up. 2 screws removed with nut driver, lift front up and off. I can see coils readily accessible on bottom left. Using stubby phillips screwdriver, remove and replace coils. Clean lint, reassemble. Dryer works great, and repair was actually easier than anticipated after watching video. Close call, because wife as naggin' for new dryer. If the coil kit didn't work, I would have lost the argument!

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: 15 - 30 mins
Tools: Nutdriver, Pliers
Customer: Michael from HENRICO, VA

Not heating very well

I replaced the Thermostat, heating element and thermal fuse. Took 30 minutes and dryer is working fine

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1 of 1 people found this instruction helpful

Parts Used:
  • Thermostat, Internal-Bias
Level of Difficulty: Very Easy
Time to do repair: 15 - 30 mins
Tools: Screw drivers, Socket set
Customer: Ed from GRAFTON, IL

Clothes never completely dry

I watched the video then called them to order parts. They were VERY helpful & NICE. I had the parts the NEXT day. I followed the video instructions & it worked. They made my day! THANK YOU JoAnn & Teresa!

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Easy
Time to do repair: 15 - 30 mins
Tools: Socket set
Customer: Rodger from DURYEA, PA

The dryer would not heat up

I unplugged the machine and removed the back panel with a 1/4" socket. I unplugged each thermostat in turn and pulled them out. The internal bias was a bit tricky to remove without breaking the tabs or wires. I then placed each thermostat back in and replaced all the wires. Not bad at all. Weird thing is the dryer heats just fine now, until I put the back panel on; once I replace the back panel, it will not heat.

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Very Easy
Time to do repair: Less than 15 mins
Tools: Nutdriver
Customer: JOHN from TULSA, OK

Dryer wouldn't start

removed the back panel as described in the tutorial. then removed the two parts as the repairman described, it took maybe 10 minutes beginning to end. Dryer works like a charm now.

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1 of 1 people found this instruction helpful

Parts Used:
Level of Difficulty: Very Easy
Time to do repair: 15 - 30 mins
Tools: Screw drivers, Socket set
Customer: BRENTON from PITTSBURG, NH

Would not start

Thermal fuse open so I changed that and the thermostat to make sure it would cycle the heat.

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Model Cross Reference

This part works with the following models:

PartSelect Number: PS11741405
Manufacturer Part Number: WP3387134
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