Genie Broken Trolley / Carriage Teeth

Opener runs but door does not move; chain/belt or screw turns but trolley stays still.

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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

Worn or stripped trolley teeth, Cracked carriage body, Excessive force from binding door, Incorrect installation causing misalignment

How to Fix / Troubleshooting

Safety first: Disconnect power and ensure the door is supported before working on the rail or trolley.

Steps:

  • Inspect trolley: Look along the rail for the trolley. Check for broken plastic, missing teeth, or a split housing.
  • Disconnect door: Pull the emergency release and move the door by hand to confirm it moves freely and is balanced.
  • Replace trolley: Remove the opener from the header bracket if needed, slide off the old trolley, and install a new Genie trolley / carriage specific to your rail type (chain, belt, or screw).
  • Re-engage and test: Reconnect the opener, re-engage the trolley, and test full open/close travel. Re-adjust limits if necessary.
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Repair Difficulty

Medium 3/5

Required Part

Genie Trolley / Carriage Assembly
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