Light on Garage door opener does not light up when opening GDO.
Does not work from wall switch either, could cause be circuit board is defective?
Take the bulb out and try it in another fixture known to work first.
The vibration on most openers kills plain bulbs.
You need a 'rough service' or 'high vibration' bulb almost all the time.
The cheap 'rough service' bulbs just have a coating on the glass.
You need the bulb with the extra filament support.
Bulbs are good, not burnt out.
Lights are now working, I got another circuit board on E-BAY and the problem was the circuit board.