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Customer Questions and Answers for Latch Sister Board (Motorized Latch Control) by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18037899
Manufacturer Part Number: WP8301848

This latch sister board controls the oven's motorized door lock used for self-clean and safety interlock functions. Replacing a failed board restores reliable lock/unlock operation so your oven can start cycles and complete cleaning as designed.

  • Powers the door-latch motor when commanded by the main control
  • Engages or releases the door lock during self-clean cycles
  • What's included: One latch sister board.

Install notes:

  • Disconnect power at the breaker before servicing
  • Use ESD protection and handle the board by the edges
  • Access is typically behind the control/upper panel; photograph wiring and transfer connectors one at a time
  • After reassembly, verify latch operation before running a full self-clean

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Questions & Answers

For Whirlpool Latch Sister Board (Motorized Latch Control) (Part Number: OEM18037899)

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Answer

Scott, If the control panel beeps but just no display then you will want to check the transformer WP9760587. You will want to test for 120 vac at the p16 connector between pins 5 and 7 for 120 vac and if there is power there then test from the p16 pins 2 to 3 for 12 to 24 vac. If there is no power at this point then transformer is bad. If there is power at this point then the control board is faulty. If there is no power at pins 5 to 7 then the control board is faulty. The control board for this unit would be part number [AP5021414] which unfortunately has been disconitnued by the manufacturer with no suitable replacement available.

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Answered by AppliancePartsPros.com   |   Tuesday, October 23, 2018

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