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Customer Questions and Answers for Electronic Control Board (Main Control Board) by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18988680
Manufacturer Part Number: W11227239

This electronic control board manages the appliance's functions and user interface, restoring normal operation when the original board fails. It replaces a faulty control module to help re-enable cycles, settings, and display feedback. What it does:

  • Receives input from the control panel and sensors to run timed cycles and selected options
  • Controls power delivery, timers, and cycle sequencing for proper operation
  • Can cause error codes, unresponsive buttons, or intermittent operation if damaged
What's included:
  • One electronic control board (main control board) as shown
Install notes:
  • Disconnect power before removing or installing the control board to avoid shock or damage
  • Handle the board carefully; avoid touching circuitry and use anti-static precautions when possible
  • Verify the board mounting, wiring harness connections, and connectors seat fully during installation

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Questions & Answers

For Whirlpool Electronic Control Board (Main Control Board) (Part Number: OEM18988680)

1 Answer

Sparky, Based on the information provided and if the defrost heater and thermostat are good then the control would be the likely issue if it is a defrost issue. Check for air leaks that could cause the evaporator to frost up excessively.

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1 Answer

Rob K, Based on the information provided it sounds as if you have a sealed system issue that would require an EPA certified technician.

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1 Answer

Elias, With the unit not having power to anything but the light then this will most likely be a control board issue. A power surge or lightning strike could cause this or the board just failing.

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1 Answer

Henry, A low charge can mimic a defrost problem. Bottom line is if that compressor is running and the fans are running you should be getting cold. It does sound like the refrigerant has leaked out.

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David for Model Number PSD266LHEW

Hi, recently my unit would not cool at proper temps after some diagnostics I felt like the defrost thermostat should be replaced, A huge solid block if ice has formed near the top left of the coils. I replaced the defrost thermostat (from appliancepartspros.com) and the unit worked fine for several days. However now the unit is not cooling to proper temps again but instead of a block of ice there is very thick frost at the same location. Any help would be greatly appreciated, thanks in advance.

1 Answer

Hello David. This indicates a restriction or Freon leak in the sealed system. You will need an HVAC tech to come out and repair the unit. Thank you.

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Tom for Model Number Maytag PSD262LHEW

Refrigerator and freezer would not cool. Removed control box cover and moved the circuit board inside and the compressor started and both sides cooled. After running for a couple of hours at high setting turned temperature down, would not restart. Again tapped on the circuit board located in the control box in the refrigerator and it started up again with both sides on coldest settings. Has stopped and restarted in the last couple of hours. Plan to run for the next 24 hours to see if stops running.

1 Answer

Tom, With the unit starting back after the tapping on the adaptive defrost board then the board would be faulty and would need to be replaced.

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1 Answer

Stan, This issue would most likely be caused by a faulty adaptive defrost control board that may be sticking in the defrost cycle. Resetting it will allow the unit to operate again. Also check to make sure that the condenser fan motor is running because if it is not it can cause the compressor to overheat and shut down.

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1 Answer

David, The main control board on this unit would be the cause for the dispenser to act the way that it is. The part number if you serial number starts with a 10 or 11 then it will be W10890094.

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