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Customer Questions and Answers for Smart Board by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM18117882
Manufacturer Part Number: WB27X25300

The Smart Board is an OEM part for GE Microwaves. As the central control system, this board regulates all primary functions including power levels, cooking times, safety features, and the digital interface. 

Causes of a faulty smart board can include failures over time from repeated heat cycling during use. Electrical fluctuations or physical damage from drops or impacts may also degrade functionality.

Symptoms include:

  • Buttons or controls not responding as expected  
  • Display errors like dimming or freezing
  • Timer malfunctions such as inaccurate countdown
  • Safety features failing to operate properly 

This GE replacement board is compatible with Hotpoint, RCA and select Kenmore models as well.

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Questions & Answers

For Ge Smart Board (Part Number: OEM18117882)

1 Answer

Glenn, Thanks for the question!!! Yes, if it runs and heats when shut then a relay on the smartboard has failed.

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1 Answer

Joe, with the microwave unplugged, the control panel will have 1 screw mounting it that would need to be removed. Once the screw is removed, the control panel would lift up then out. It is recommended that one wire is switched at a time. Ensuring that there are no grounded or bare spots on the voltage wires would help. It is also recommended that the door switches are tested for proper operation.

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1 Answer

Jeanne, You will want to check the door switches on the unit to make sure that they are good as this would be the most likely cause for the issue.

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1 Answer

Hello John, You will have to purchase the board WB27X25300 to get the relay. This is as far down as the manufacturers' parts breakdown provides part numbers so unfortunately, I'm sorry but we do not have specifications on the relay.

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