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Customer Questions and Answers for Rotor Position Sensor by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18049140
Manufacturer Part Number: WPW10178988

The Rotor Position Sensor is an OEM part for Whirlpool washing machines. It is responsible for monitoring the position and speed of the rotor, ensuring the motor operates correctly to perform various washing cycles. The sensor sends precise data to the washing machine's control board, which adjusts the motor's function accordingly.

Causes of a bad rotor position sensor can include electrical failures, wear and tear over time, or physical damage from impact or moisture exposure. When this sensor fails, it disrupts the communication between the motor and control board, leading to operational issues.

Symptoms of a bad rotor position sensor include:

  • The washing machine not spinning or agitating
  • Error codes indicating motor issues
  • The machine stopping mid-cycle
  • Unusual noises coming from the motor area

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 Rotor Position Sensor (Part Number: OEM18049140)

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Jim for Model Number MVWB450WQ2

I have a Maytag washer model MVWB450WQ2 and the UL error keeps appearing no matter what I do to clear it. I had followed some online videos and it was suggested the motor position sensor could be the issue. I have tested the voltages at the main control board end and the 15 and 5 volts appear on the connector. Any suggestions how to test this sensor or could be some other fault I'm not aware of. I was going to remove the stator but reading some other comments it could be the bowl not seating properly due to worn bearings? Any suggestions.

Answer

Hello Jim, the rotor position sensor only signals the board for motor speed and direction of rotation. Feedback signals from the motor windings to the board, are interpreted by the board as a balanced/unbalanced load. If the code is showing every load that can be caused by a clothes basket that can no longer center itself or worn spin bearings. You can pull out the basket and check if the center opening that goes over the shaft is worn, if not then its the spin bearings may be binding/dragging.

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Answered by AppliancePartsPros.com   |   Thursday, May 28, 2020

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