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Customer Questions and Answers for Controller Assembly (Main Control Board) by Lg

4.89 (64)
By: Lg
Part Number: OEM13540251
Manufacturer Part Number: ACM55859001

This controller assembly is the main electronic control board that manages your appliance's cycles and user interface, restoring normal control when the original board fails. It replaces a faulty control module to help the unit operate reliably. What it does:

  • Controls timing, cycles, and functions per user commands and sensor inputs
  • Replaces malfunctioning or unresponsive control electronics that cause erratic operation
  • Can resolve symptoms such as no power to controls, unresponsive buttons, or incorrect cycle behavior
  • Works with existing wiring harnesses and display components when compatible
What's included: One controller assembly Install notes:
  • Disconnect power before beginning work to prevent shock or damage
  • Verify connector locations and orientation before removing the old board
  • Handle the board by edges and avoid contact with circuitry to prevent static damage

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Questions & Answers

For Lg Controller Assembly (Main Control Board) (Part Number: OEM13540251)

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D for Model Number LG LSC27931ST Refrigerator

Hi! Hoping you can help. LG LSC27931ST refrigerator. Freezer section is plenty cold but seems to get too warm during defrost cycle (symptom noticed: ice cream has melted and re-frozen). Web research suggests I should try replacing this part: Refrigerator Defrost Sensor Assembly L-G-ACM55859001 1. Is this the correct part to try replacing? Is there another (or different) part I should (also) try? 2. How is L-G-ACM55859001 accessed? Is it from inside the freezer (removing inside back panel), or do you get to it from the outside via the back of the entire refrigerator? Thank you very much.

Answer

D, if the compressor is not running for an excessive amount of time after a defrost cycle, the controller assembly ACM55859001 would be the most likely cause of failure. It would be accessed by removing the back panel in the freezer. However, if the freezer is taking a long time to get back down to temperature, the condenser coils would need to be inspected for dust congesting the coils and cleaned as necessary.

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Answered by AppliancePartsPros.com   |   Monday, February 6, 2023

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