Danby
Control Board Logic Failure
Refrigerator lights work but compressor and fans do not run; display may be blank or frozen.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed main control board microcontroller, corrupted firmware, stuck relay, internal board short
How to Fix / Troubleshooting
Safety: Unplug the refrigerator before removing the control board cover.
Steps to diagnose control failure:
- Power reset: Unplug the unit for 10–15 minutes, then plug back in. Sometimes this clears minor logic faults.
- Check for error codes: If the display returns but shows codes, follow the relevant troubleshooting steps.
- Inspect board: Remove the control board cover and look for burnt components, cracked solder joints, or moisture damage.
- Relay test: Listen for relay clicks when the unit should start cooling. If no relays click and sensors are good, the board is likely faulty.
- Replace board: Install a new OEM Danby main control board, transferring any jumpers or programming as specified in the service instructions.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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