How to Fix / Troubleshooting

Safety first: Ensure the door path is clear before reprogramming travel.

Reset programming: Follow the Mighty Mule installation manual to clear existing travel limits.
Run full cycle: Put the opener into learn mode and allow it to run the door fully open and fully closed without interruption.
Verify stops: Confirm the door stops at the correct fully open and fully closed positions. Adjust fine travel if your model allows.
Re-test: Operate the door several times to ensure consistent travel without reversal.

Opener runs but door only moves a few inches and then reverses direction.

Possible Causes