If your garage door opener craftsman liftmaster chamberlain genie sommer decko has no power but it is plugged in the circuit breaker is on and you know for sure the electrical outlet has power then there is something in the garage door opener that is faulty.
Garage door opener light not turning on.
Was not making a connection and completing the circuit allowing the light bulb to work.
Take out the light bulb.
The standard delay is 4 1 2 minutes but this can be adjusted using a multi function door control if one is installed.
Disconnect the unit power.
Your garage door s light feature is.
As you see many factors could be happening at the same time.
You left the panel light switch on.
Then reconnect the opener.
The opener to the power source.
If there is a back up battery.
Garage door opener not getting power how to troubleshoot answer.
Finally screw the light bulb back into the socket do not over tighten the bulb and reconnect.
Reset the light timer to the lowest setting 90 seconds instead of 4 minutes.
With a small flathead screwdriver pry the two contacts inside the socket out so that they will make better.
Doing so will reset it but don t abuse this tip.
Disconnect the wiring from the opener.
In many case the bulb will start working again as the cause was the tab.
If your garage door opener light is not working the fix might be as simple as changing the light bulb.
Try these steps to fix the issue.
If you find that your lights aren t turning off unplug and replug the opener.
We have observed brand new light bulbs that don t work right out of the box.
More specifically if your garage door light won t shut off it is most likely due to one of these reasons.
Light bulb needs to be replaced in garage door opener.
Something is triggering your garage door motion sensors which are responsible for turning the light on and off.
Failure to unplug the opener may result in electric shock.
If it s the contacts in the light socket warning.
Each opener is equipped with at least one light bulb maximum of 100 watts each which is controlled by the receiver logic board.
I have seen this.
Try to cover every aspect potentially contributing to the trouble and you ll find many solutions.