Stanley Safety Lockout or Obstruction Detected

Opener light flashes but motor does not run when you try to operate the 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

Safety sensors blocked, Travel limits out of range, Internal thermal overload tripped, Logic board detecting repeated obstructions

How to Fix / Troubleshooting

Safety first: Inspect the entire door path for obstructions before attempting further operation.

Steps to clear lockout:

  • 1. Check sensors and door path: Verify photo eyes are aligned and the door path is clear of objects.
  • 2. Allow motor to cool: If the opener has been cycled repeatedly, wait 15–20 minutes for the internal thermal overload to reset.
  • 3. Reset opener: Disconnect power for 60 seconds, then restore. Try operating the door again.
  • 4. Recheck travel limits: If the door was recently adjusted, verify that up and down limits are set correctly so the opener is not trying to drive beyond its physical stops.
  • 5. If flashing persists: Consult the Stanley manual for specific flash patterns; a logic board fault may require replacement.
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Repair Difficulty

Medium 3/5

Required Part

Stanley Logic Board (Control Board)
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