FAAC Low Motor Torque / Power Supply Issue

Opener operates but door moves very slowly or lacks power, even with a balanced door.

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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

Incorrect mains voltage (e.g., 110V on 230V unit), Weak capacitor on single-phase FAAC motor, Partial winding failure, Undersized extension cord or supply cable

How to Fix / Troubleshooting

Safety: Only qualified persons should test mains voltage. Disconnect power before opening the unit.

  • Verify supply voltage: Measure mains voltage at the opener and confirm it matches the FAAC rating plate.
  • Inspect motor capacitor: On single-phase motors, locate the start/run capacitor. If bulged or leaking, replace with the exact capacitance and voltage rating.
  • Check wiring size: Ensure the supply cable is of adequate gauge and not excessively long or run through multiple adapters.
  • Test with door disconnected: If the motor is still weak with no load, the motor windings may be failing and the motor should be replaced.

Do not continue to operate a weak motor; it may overheat and fail completely.

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Repair Difficulty

Hard 4/5

Required Part

FAAC Motor Capacitor
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