How to troubleshoot a power failure in my Grifco Garage Door Opener?
- AAndrew JohnsonAug 18, 2025
If your Grifco Garage Door Opener experiences a power failure with no lights on the MCB or Controller, the issue might stem from the power supply not being correctly connected. You should check the transformer and the power supply wiring. If lights are on at the MCB but not on the Controller, there may be a bad connection to the Controller.