FAAC Electrical Short or Inrush Overload

Opener trips the circuit breaker or blows a fuse when starting.

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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

Shorted motor windings, Pinched mains cable, Water ingress in FAAC control box, Incorrect fuse or breaker rating

How to Fix / Troubleshooting

Safety: Turn off the breaker and verify no power is present before inspection. Water and electricity are a dangerous combination.

  • Inspect wiring: Check the mains cable and internal wiring for cuts, burns, or pinched insulation.
  • Look for moisture: Open the FAAC housing and inspect for condensation or water. Dry thoroughly and correct any roof or wall leaks.
  • Disconnect motor: With power off, disconnect the motor leads from the board. Restore power; if the breaker no longer trips, the motor is likely shorted.
  • Verify protection rating: Ensure the breaker and fuses match FAAC specifications; do not oversize them to stop nuisance trips.

If a short is suspected in the motor or board, replacement is usually required; do not attempt to bypass protective devices.

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Repair Difficulty

Professional Required 5/5

Required Part

FAAC Motor Assembly
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