Craftsman
Motor Start Circuit Failure
Garage door opener clicks but does not run; a relay sound is heard but the motor does not start.
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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 start capacitor, Open motor winding, Faulty motor relay on logic board, Loose motor harness connector
How to Fix / Troubleshooting
Safety first: Unplug the opener and wait for capacitors to discharge before opening the housing.
- Inspect motor harness: Ensure the motor connector is fully seated on the logic board and wires are intact.
- Check capacitor: Look for bulging or leaking on the start capacitor. Replace with a Craftsman-compatible unit if damaged.
- Test motor (advanced): With the motor disconnected and using proper safety precautions, a technician can test motor windings for continuity.
- Replace components: If the capacitor is good and the motor windings are open, replace the motor assembly. If the relay on the board is visibly burned, replace the logic board.
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Repair Difficulty
Hard
4/5
Required Part
Motor Start Capacitor, Motor Assembly, or Logic Board
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