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Customer Questions and Answers for Lid Switch by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18034989
Manufacturer Part Number: WP8054980

This lid switch is the washer's safety interlock. It detects when the lid is closed so the machine can agitate and spin, and cuts power when the lid is opened to stop operation and enhance user safety.

  • Monitors lid position and allows agitation/spin only when the lid is closed
  • Interrupts motor operation if the lid opens during a cycle
  • Common failure symptoms: washer won't start or spin, fills but stalls, stops intermittently, or displays "lid open" alerts
  • Restores proper cycle progression and safety shutoff when replaced
What's included: One lid switch Install notes:
  • Disconnect power and water supply before servicing
  • Access the switch from under the top panel/console per your model's procedure
  • Release the old switch, move the harness to the new switch, and secure wiring away from moving parts
  • Ensure the lid closes and actuates the switch before reassembly and test run

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Questions & Answers

For Whirlpool Lid Switch (Part Number: OEM18034989)

1 Answer

Scott, Check the lid switch for continuity using a multimeter, then make sure the actuator is closing the switch when the lid closes. If the lid switch is functioning properly then check the clutch assembly.

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1 Answer

Hello John, please recheck the washer's model number and repost your question, the number given shows as an invalid model number.

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1 Answer

Jeremy, We will need to have the model number of your unit to be able to assist with your question.

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1 Answer

Dumas, The model number listed is not valid and we would need to have the model number to be able to assist with your question.

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1 Answer

Leon, the timer should be advancing to a position where the motor is shut down, allowing the gearcase to go into gear. The timer will need to be replaced, part number is WP8546165

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1 Answer

Genevieve, If the unit will not fill with water or do anything then you would most likely have a issue with either the power supply or with the timer. If the unit will fill with water but nothing else then the lid switch would be the most likely cause.

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1 Answer

Hello Toni. You need to access the inside of the control panel and the inside of the control box. Once you access those, you can remove the nut in the coin box and release the cabinet clips on the unit. Now you should be able to access and replace the lid switch on the unit.

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1 Answer

Hello Bud, If the water supply is verified to the water valve, the water valve will be the first suspect. For a more detailed diagnosis, please include the model number from the units' I.D. tag.

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1 Answer

Facto, First check and make sure the drain hose and standpipe are at the correct height off the floor (38 to 39 inches) the washer will "syphon" if the drain hose is too low. If that's alright, then you'll need to check or replace the control board 8577278 and check the wires between the motor and control board for loose or broken connections.

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