Refrigerator not cooling after a power interruption
Why it happens here
East Contra Costa County sees summer voltage swings and brief outages, and the control boards in modern Sub-Zero, KitchenAid and GE refrigerators are sensitive to both. A surge can take out the board while leaving the compressor untouched, so the unit looks dead but the expensive part is fine.
Our approach
We test the compressor first to confirm it is healthy, then trace the fault to the board or a failed relay. Replacing the board is a fraction of the cost of a compressor, and we check the condenser coil and door gaskets during the same visit so the repair holds.