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Error code reference
Whirlpool Refrigerator Error Code MAIN BOARD
Main control board failure detected during service diagnostics mode.
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Diagnostic procedure
The full MAIN BOARD procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Enter service diagnostics mode and complete all 7 steps; if fail condition occurs, LED display pattern indicates main board failure.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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