Stanley
No AC Power or Blown Internal Fuse
Garage door opener does not respond after a power outage; no lights or sounds from the unit.
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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
Tripped circuit breaker or GFCI, Blown fuse on Stanley logic board, Failed power cord or plug, Surge damage to transformer
How to Fix / Troubleshooting
Safety first: Use caution when resetting breakers. If a breaker trips repeatedly, do not force it on.
Steps to restore power:
- 1. Check outlet: Plug a lamp into the opener’s outlet to confirm power. Reset any tripped GFCI or breaker.
- 2. Inspect power cord: Examine the opener’s cord for cuts or damage. Replace the cord if compromised.
- 3. Check internal fuse: Disconnect power, remove the cover, and locate any fuse on the logic board. Replace with the same rating if blown. If it blows again, there is a deeper fault.
- 4. Evaluate transformer: If the fuse is intact but there is still no low-voltage power (no LEDs), the internal transformer may be failed. This typically requires board or opener replacement.
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Repair Difficulty
Medium
3/5
Required Part
Stanley Logic Board Power Supply Fuse
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