Nice Drive Disengaged or Slipping

Nice garage door opener motor runs but the door does not move, or moves only slightly then stops.

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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

Manual release not fully engaged, Worn or stripped trolley/carriage, Loose chain/belt tension, Worn drive sprocket on Nice motor head

How to Fix / Troubleshooting

Safety first: Disconnect power and support the door before working on the drive.

  • Re‑engage manual release: Ensure the release lever or cord is returned to the locked position. Move the door until the trolley clicks back into the carriage if required.
  • Check chain/belt tension: Inspect along the rail. Adjust the tension nut so the chain/belt has a small amount of slack but does not sag excessively.
  • Inspect trolley teeth: Look for worn or missing teeth on the carriage that engages the chain/belt. Replace the trolley if damaged.
  • Examine motor sprocket: Check for wear or wobble on the sprocket. Replace if teeth are sharp or the sprocket is loose on the shaft.
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Repair Difficulty

Medium 3/5

Required Part

Nice trolley/carriage and chain/belt
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