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Customer Questions and Answers for Timer (3-Cycle) by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18027078
Manufacturer Part Number: WP3976574

This 3-cycle mechanical timer controls cycle sequencing and duration in select Whirlpool appliances, restoring proper timing and automated cycle changes. It's a direct-replacement control for units with a worn or non-advancing timer. What it does:

  • Advances the appliance through its programmed cycles and times each cycle interval.
  • Directly controls cycle-related functions so the unit starts, changes, and ends cycles as intended.
  • Common symptom: appliance stays on one cycle, won't advance, or runs continuously.
  • Common symptom: cycles do not complete or the appliance fails to switch between functions.
What's included: One 3-cycle mechanical timer. Install notes:
  • Disconnect power (unplug or shut off breaker) before beginning any service.
  • Take a photo or label wiring before removing the old timer to ensure correct reconnection.
  • Handle the timer and connector pins carefully to avoid damage; use proper tools.
  • After installation, restore power and run a test cycle to ensure proper operation.

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Questions & Answers

For Whirlpool Timer (3-Cycle) (Part Number: OEM18027078)

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Answer

John, The most likely culprit would be a bad igniter, flame sensor or gas valve. You can check to make sure that you are getting power to the igniter by accessing the igniter and turn unit on. If the igniter does not glow then you will want to check to make sure that you are getting power to the igniter. Unplug the igniter and check across the terminals for 120 vac with unit running. If there is not 120 vac then then you will need to check from black to ground to make sure that you are getting 120 vac. If you are still not getting 120 vac then the problem would be in the motor switch. If you are getting 120 vac then you would want to check the High limit thermostat and thermal fuse for continuity. If there is no continuity replace the part. If there is continuity on both then the timer would be the issue.

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Answered by AppliancePartsPros.com   |   Wednesday, May 1, 2013

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