Whirlpool Dryer Thermostat, Internal-Bias WP3387134 | Fix.com

Thermostat, Internal-Bias

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Thermostat, Internal-Bias – Part Number: WP3387134
Thermostat, Internal-Bias – Part Number: WP3387134
Thermostat, Internal-Bias – Part Number: WP3387134
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Part Description:
Cycling thermostats continually cycle the heating element off and on to maintain a constant inner temperature. This particular cycling thermostat has a limit of 155 degrees Fahrenheit and a differential of 25 degrees. Meaning that the heating element will cut out at 155 degrees and cycle back on once the internal temperature drops by 25 degrees.
This part fixes the following symptoms: No heat or not enough heat, Takes too long to dry, Will not start, Timer will not advance.
This part works with the following brands:
Part number cross reference:
This part works with the following products:
Dryer, Washer Dryer Combo.

Installation Videos

Replacing your Whirlpool Dryer Thermostat, Internal-Bias
Watch this how to video with simple, step-by-step instructions for a successful DIY repair.
Fixes the following symptoms:
  • Dryer is not maintaining a constant internal temperature
Tools used for this repair:
  • 1/4" Nut Driver
  • Pair of Needle Nose Pliers

Installation Instructions

Showing 1-10 of 65 Instructions
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Dryer not heating

Checked the heating element and found a break in the heating coil. Decided to change the thermal fuse and the the cycling thermostat because of the age of the dryer.

Were these instructions helpful?

56 of 62 people found these instructions helpful
Parts Used: Thermal Fuse , Thermostat, Internal-Bias , Heating Element - 240V 5400W
Difficulty Level: Really Easy
Total Repair Time: 15 - 30 mins
Tools: Nutdriver, Pliers
Customer: gary from apex, NC

Not getting hot enough, eventually no heat

I ordered the parts I thought may be the problem. If you watch any of the videos to help with a repair most of the video time is spent taking off and putting on the back panel. That being said once the panel was off it took me maybe 20 minutes to install the 4 parts I had ordered. Could have gone faster but also had 3 kids ages 2 and up to work around. This web site not only helps you trouble shoot but then gives discounts for the parts needed and helps with the repair through videos. Obviously the objective was to help customers from start to finish and I believe they achieved just that. Will use this site in the future and tell others about it as well. My instructions are to watch their video to do the repair. Don't rush or get anxious just focus on your task. My wife said the dryer works like new now.

Were these instructions helpful?

22 of 24 people found these instructions helpful
Parts Used: Thermostat, High Limit 221 F ( , Thermostat, Internal-Bias , Heating Element - 240V 5400W , Thermal Cut-Off Kit
Difficulty Level: Very Easy
Total Repair Time: 15 - 30 mins
Tools: Nutdriver, Pliers, Screw drivers, Socket set
Customer: Tim from Fargo, ND

Dryer ran but did not dry clothing.

Best site I have ever used for repairs. First a list of what parts were needed was provided right from the start, no guessing. I followed all of the video's provided for installation instructions and and that was it. Very easy to make repairs and almost rebuilt my dated dryer to like new condition. Appliance was in very good physical condition just needed new components to bring it back. Highly recommend this site to anyone who can turn a wrench.

Were these instructions helpful?

8 of 9 people found these instructions helpful
Parts Used: Thermal Fuse (Limit: 183) , Flat Style Igniter , Thermal Fuse , Thermostat, Internal-Bias , &#39;M&#39; Series New Style Coil Kit
Difficulty Level: Really Easy
Total Repair Time: 1- 2 hours
Tools: Nutdriver, Screw drivers
Customer: Dennis from ALISO VIEJO, CA

No heat just cold air was blowing.

did like your video showed on you tube.

Were these instructions helpful?

2 of 2 people found these instructions helpful
Parts Used: Thermostat, High Limit 221 F ( , Thermostat, Internal-Bias
Difficulty Level: Easy
Total Repair Time: 15 - 30 mins
Tools: Nutdriver, Screw drivers
Customer: Stacey from MADERA, PA

Dryer was not turning on

Replaced thermal fuse

Were these instructions helpful?

2 of 2 people found these instructions helpful
Parts Used: Thermal Fuse , Thermostat, Internal-Bias
Difficulty Level: Really Easy
Total Repair Time: 15 - 30 mins
Tools: Nutdriver
Customer: Norris from NASHVILLE, TN

Our Whirlpool dryer had stopped beating.

I initially thought to replace the heater element, however the website gave me a list of the possible issues, with the probability ratings conveniently listed next to the part numbers. Not knowing exactly which part was needed I decided to replace all three just to be on the safe side. The parts arrived quickly (about five days) and the installation was easy and straightforward. Total cost for this project was about $50 bucks, which sure beats buying a brand new dryer.

Were these instructions helpful?

2 of 2 people found these instructions helpful
Parts Used: Thermal Fuse , Thermostat, Internal-Bias , &#39;M&#39; Series New Style Coil Kit
Difficulty Level: Easy
Total Repair Time: 1- 2 hours
Tools: Nutdriver, Screw drivers, Socket set
Customer: Craig from Rio Rancho, NM

Dryer ran, heated got to temp but would not heat again

Took off back panel of dryer and be removed old thermostat and thermal fuse. Replaced with the new one and wired up by transferring one wire at a time. Took apart top and front of dryer to get to coil valve. Replaced with new ones. Repair person would have posted 150 to diagnose and additional 50 per part got all three parts shipped for 50 so did it myself and saved at least 250.

Were these instructions helpful?

2 of 2 people found these instructions helpful
Parts Used: Thermal Fuse , Thermostat, Internal-Bias , &#39;M&#39; Series New Style Coil Kit
Difficulty Level: Very Easy
Total Repair Time: Less than 15 mins
Tools: Nutdriver, Pliers
Customer: Benjamin from Sandwich, IL

Dryer would not turn off at the end of the timer cycle

Unlike the video related to the Cycle Thermostat, I had to remove the control panel, top, front and drum to access the part. I might have been able to access it from the lower front panel but given the age I was really happy I took it apart and cleaned all the link out. I found other videos on YouTube to help me take it apart. It works perfect now and it is much much quieter. Not sure what I did to quiet it down, but everyone including the cat is happy!

Were these instructions helpful?

2 of 2 people found these instructions helpful
Parts Used: Thermostat, Internal-Bias
Difficulty Level: Easy
Total Repair Time: 30 - 60 mins
Tools: Nutdriver, Pliers, Screw drivers
Customer: Mark from Escondido, CA

No heat

Cost was $114.00 to replace all parts , It took longer to take apart & test everything than it did to do the repair ! I tested all parts twice , everything would test fine , I put it all back together and the dryer worked for 5 minutes , did that twice and decided to order all the parts an be done with it . Ordered the parts , that showed up at my door in 2 days !!! Turned OFF gas , took off vent hose , took back off with 8 screws , popped up top in the front , took 2 screws off the top in the back removing the brackets , Inside the front under the top removed 2 screws holding on the front , lifted the front and removed . All parts only have 1 or 2 screws holding them in place , removed 1 part at a time , removing and replacing 1 wire from old part to the new part so I did not mix up the wires , replace the part and go to the next part . It was pretty self explanatory replacing the parts , It took 20 minutes to take apart , replace the parts and put back together so my loving wife could do laundry again. You don't realize what a inconvenience it is to go without a dryer for 3 days when you have had one for 37 yrs ..... THANK YOU , 3 days can seem like forever when someone is not happy , but it was much much better than waiting 7 to 10 days for the wrong parts from somewhere else . You have the BEST parts website that I have EVER used !!! THANK YOU AGAIN , Donald

Were these instructions helpful?

2 of 2 people found these instructions helpful
Parts Used: CUTOFF-TML , CUTOFF-TML , Radiant Flame Sensor , Thermostat, Internal-Bias , &#39;M&#39; Series New Style Coil Kit
Difficulty Level: Really Easy
Total Repair Time: 15 - 30 mins
Tools: Nutdriver, Screw drivers
Customer: Donald from Ottawa, IL

Dryer was shutting down before clothes were dry

Removed the back panel. The fuse and the thermostat were right there. One screw on the fuse and 2 wires, 2 screws on the thermostat and four wires. Very simple and easy job. Dryer works perfectly now.

Were these instructions helpful?

1 of 1 people found these instructions helpful
Parts Used: Thermal Fuse , Thermostat, Internal-Bias
Difficulty Level: Very Easy
Total Repair Time: Less than 15 mins
Tools: Nutdriver, Pliers, Screw drivers
Customer: John from STATEN ISLAND, NY
Showing 1-10 of 65 Instructions
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Model Cross Reference List

This part works with the following models:

Fix Number: FIX11741405
Manufacturer Part Number: WP3387134


Brand Model Number Description
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