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Customer Questions and Answers for Hi-Limit Thermostat by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18045627
Manufacturer Part Number: WPW10116735

The Hi-Limit Thermostat is an OEM part for Whirlpool dryers. It serves as a safety device that prevents the dryer from overheating by cutting off the power to the heating element if the temperature exceeds a certain limit.

You should replace the hi-limit thermostat if it malfunctions or fails. Causes of a bad hi-limit thermostat can include normal wear and tear, exposure to excessively high temperatures, or electrical issues that affect its functionality.

Symptoms of a bad hi-limit thermostat include:

  • The dryer not heating properly
  • The dryer shutting off unexpectedly during a cycle
  • Long drying times or clothes not drying completely
  • The dryer becoming excessively hot to the touch

This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.

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Questions & Answers

For Whirlpool Hi-Limit Thermostat (Part Number: OEM18045627)

1 Answer

Kevin, Yes, the high limit can be used and you would just need to have a jumper wire going from the thermostat to the other terminal on the heating element.

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1 Answer

Jay, Normally a loose connection or a corroded wire will cause the wire to burn on the unit.

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1 Answer

Chad, One of the first things to check would be the venting of the unit to make sure that it is not clogged. This can trap in heat and cause longer dry times along with making the clothes too hot to touch. If the venting checks ok then the most likely cause for the issue would be a faulty cycling thermostat which is located on the side of the blower housing. The part number for the thermostat is WPY504514.

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1 Answer

Mike, The thermostats and fuse wouldn't affect the motor running. So that's not the issue. The most likely problem, based on your information and description is a motor WP2200376. It's overheating due to age and wear and tear the overload is getting hot and opening the circuit causing the motor to stop running.

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1 Answer

Ted, You most likely have an exhaust vent or vent hood issue. That's where you want to start anyway. Your dryer has two thermostats and a thermal fuse, The hi limit thermostat WPW10116735 opens whenever there is an air flow problem, and stops power to the heater,early. The cycling / regulating thermostat WP37001136 controls all three temperatures in the drum. Basically, the hi limit switch is opening and the regulating thermostat isn't, this causes the dryer to take longer to dry a load of clothes because of the air flow problem.

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Brian for Model Number MDE4806AYW

I just received this Maytag dryer from a friend so I don't know how it ran before I got it. I changed out the cord from a 4 prong back to a 3 prong. I plugged it in and it will only stay on for about 10-15 seconds and shuts itself off. In that time some heat is produced so the element is working and it also does it when I have it on "air dry". Also, the green lights flash on the timer every minute or so, don't know if it is supposed to do that or is it indicating a problem? Thanks

1 Answer

Brian, The most likely cause for the unit to run 15 seconds then shut off would be caused by the motor not switching from the start winding to the run winding which would mean that the motor would need to be replaced.

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1 Answer

Hello Joshua. If your sure the unit is all good, then it sounds like the cycling thermostat may be bad and need to be replaced on the unit.

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Dave for Model Number Amana Elec Dryer DLE330RAW

Just before christmas my dryer stopped heating so I replaced the heat element. Dryer then heated but would appear to overheat and shut down after 10 +/- minutes. I could then start it again once cool but had to keep the loads half size and on a gentle heat to prevent it shutting down again. I went to a local repair shop looking for thermostats because the new heater did not come with them. The owner said did not have the thermostats but only sold the "whole package" (heater with thermostats attached). He went on to say that the symptoms I described were almost certainly the motor going bad. So I replaced the motor today. Ran two loads and it did the overheat shutdown thing again. Since I am going to continue throwing parts at this thing, what would be the next logical part? thanks.

1 Answer

Dave, The first thing that you will want to do is to check your venting. Check from the blower wheel all the way out to the outside of your home. You can also try to disconnect the vent at the back of the dryer and run a normal load. If it continues to happen then most likely the cycling thermostat and high limit thermostat would need to be replaced. If the cycling thermostat is not cutting out it will cause the high temp to trip. Because of this the high limit should be replaced at the same time. The part numbers that you would need if the vent is not clogged is cycling thermostat WP503979 and high limit thermostat WPW10116735.

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Tim for Model Number Amana NDE7800AYW

The Medium (No-Iron) setting appears to run longer than necessary although dryer is supposed to have a sensor to prevent this. The clothes are dry even though the cycle has more to go. And it seems like it is very hot for a Medium setting. To avoid excessive drying, I tried using the Low (Handwash) setting and it takes several cycles to dry a load. Does this sound like a problem with a thermostat or should I learn to use the timer controls better? Thank you

1 Answer

Tim, Based on the information it sounds like the issue would most likely be caused by a faulty cycling thermostat. The cycling thermostat may not be opening properly which would cause the timer to not advance.

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