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Customer Questions and Answers for Dryer Timer by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18040149
Manufacturer Part Number: WP8566184

The Dryer Timer is an OEM part for Whirlpool dryers. It controls the drying cycles by regulating the duration and sequence of operations, ensuring that clothes are dried properly according to the selected settings.

Over time, the dryer timer can wear out due to regular use, electrical issues, or internal mechanical failures. A faulty timer can lead to cycles not starting or ending correctly, resulting in under-dried or over-dried clothes.

Symptoms of a bad Dryer Timer include:

  • The dryer not advancing through cycles
  • The timer not moving or stopping
  • Inconsistent drying times or the dryer stopping mid-cycle

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 Dryer Timer (Part Number: OEM18040149)

Bill

I have an old Whirlpool and have determined that the timer is shot. The replacement part is WP8566184. When I went to install it, I noticed that my current timer has a "BY" (black/yellow) wire in the loom with the "BB" (blue/black) and "V" violet wires that I think are the 120 v circuit. The replacement part does not have a terminal for this wire. Is there a different part number that I need or can I leave this wire disconnected and use the replacement part? From what I can tell, the BY wire is a part of the "guard switch" which if this is a ground could be grounded via a different source.

1 Answer

Bill, if the model number of your appliance could be provided in a new question, this will allow the most accurate information to be presented.

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1 Answer

Nakia, the timer knob can be rotated in either direction. However, it is usually easiest on the internal mechanics to rotate the timer clockwise as this would be the natural progression for it.

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1 Answer

Cyndie, Based on the information provided I would check for power from the timer to the motor circuit using the wiring diagram/tech sheet that is packaged with the machine using a multimeter. I would also check the thermal fuse with the same multimeter.

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1 Answer

Ryan, if you have a multimeter, take the cover off of the power cord terminal block and see if there is 120 volts from the black to the white connection, 120 volts from red to white, and 240 volts from black to red. If the voltage is not there, something has happened to the voltage going to the dryer and you may have a breaker that has tripped or a blown fuse, depending on how your supply box is set up. If the voltage is correct, you will need to start tracing the voltage and finding out where it stops. There should be a wiring diagram in the control panel area.

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1 Answer

Vincent, If the timer is not moving in any setting then this will be a issue with the timer of the unit. If it will only no cycle during auto cycle then this will likely be an issue the cycling thermostat.

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1 Answer

Greg, Based on the symptoms this issue sounds like it would be caused by a faulty timer on the unit which is part number WP8566184.

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1 Answer

Joe, The difference between the A and B would just be a production run. The part number that you need for the timer on your unit would be WP8566184.

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1 Answer

Joe, Based on the information it does sound like the timer would be the issue with the unit. As for if the unit was not heating, the timer could still be a possibility but the thermostats would want to be checked first. The motor could also cause a no heat issue if the centrifugal switch were bad.

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1 Answer

HapiCamp, With the unit starting intermittently and being able to jiggle the timer and it would work and now does not, this would be a faulty timer which would need to be replaced.

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