The first thing you want to check is the socket your craftsman opener is connected to.
Garage door opener not working well.
The most common cause of garage door remote control failure are weak or dead batteries.
If the garage door opener is not powered up it won t work.
There is an additional guide for the not so common liftmaster issues which will be discussed after addressing the three most common problems.
Unplug the opener and disconnect the two wires from the motor reconnect your machine to power then clear its memory and reprogram all remote controls unplug the device for a second time and reconnect the control wiring to.
If pressing the button on your garage door s remote control doesn t work check the batteries first.
If your garage door doesn t open but the opener motor runs for just a few seconds and then shuts off the garage door itself may have manually been locked.
It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned.
Unplug the garage door opener from the socket outlet and plug in another device.
Quickly test the quality of your opener s wiring by following these steps.
The wall attached opener works all the time.
If you ve checked the door springs and the track for obstacles and those things appear to be fine check to see if the lock on the door is engaged.
Garage door opener not working.
We will discuss these common issues in detail and teach you how to troubleshoot your liftmaster garage door opener when you encounter them.
So get a ladder and place it under the opener.
This is to verify if the socket works.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
To be sure that the batteries are always good use name brand quality batteries instead of discount brands.
The next thing to check is your home s circuit breaker or fuse.
Finally it s possible the garage door opener s motor.