Before replacing the board, measure the supply voltage and check that the compressor start relay, overload, and capacitor are functioning. A faulty compressor or relay might burn out a replacement board quickly.
Inspect the old board for visible signs of damage (burnt components, bulging capacitors). If found, it strengthens the case for board replacement.
After installing the new board, reset any electronic controls (if required) and monitor the fridge over at least 24 hours to confirm stable operation.
Refrigerator not cooling / freezer too warm while compressor runs.
No display or control panel responsiveness.
Erratic behavior: lights flickering, ice maker not operating, random defrost issues.
Compressor or fans not starting though power is present and other components tested good.
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