Up Arrow LED Blinks 6 Times
LiftMaster
Motor Circuit Fault / Motor Not Connected
LiftMaster opener will not run; UP arrow LED blinks six times repeatedly.
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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
Unplugged motor harness, open motor winding, damaged motor wiring, failed motor capacitor
How to Fix / Troubleshooting
Safety: Disconnect power before touching internal wiring.
- Check motor harness: Remove the opener cover and locate the multi-pin connector from the motor to the logic board. Ensure it is fully seated.
- Inspect wiring: Look for burned, broken, or pinched wires between the motor and board.
- Check capacitor: Inspect the motor capacitor for bulging or leakage. Replace if suspect.
- Test motor: If you have the skills and tools, test motor windings for continuity. An open winding indicates a failed motor.
- Replace motor assembly: If wiring and capacitor are good but the error persists, replace the motor assembly with the correct LiftMaster part.
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Repair Difficulty
Hard
4/5
Required Part
Motor Assembly
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