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.
Liftmaster garage door problem solving.
If the problem occurs on the first operation of the garage door opener door may be locked.
You may find something blocking the light that passes between them or you may find that cleaning the lenses solves the problem.
When your garage door opener is not responding to any command from the remote or the door control you need to check if the opener has electricity.
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.
If troubleshooting doesn t solve your issue it s time to contact an authorized liftmaster dealer.
Adjust the sensors until the led lights stops blinking and are lit solid.
Adjust the close limit adjustment screw on the door opener motor in small increments until the door stops upon touching the floor.
The garage door springs may be broken.
Whether you have a belt drive chain drive or wall mount model find helpful resources manuals videos and more to help you diagnose and fix the problem.
If you have a liftmaster garage door opener you know how much of a quality product it is.
Manually open the power door lock.
The garage door opener won t operate due to power failure.
The garage door opener motor hums briefly then won t work.
When the garage door immediately leaps upward after touching the floor this too is a close limit switch problem.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
If you tried operating your liftmaster garage door opener with the remote control or door control and it didn t work.
Look also for cobwebs on the door tracks because they could also be blocking the light.
Check power supply to garage door opener.
There are some common reasons your garage door opener may not be working.
If none of these suggestions work it is time to contact a garage door repair specialist to see what else may be causing the issues.
Disable the power door lock.
Liftmaster garage door openers troubleshooting support get the liftmaster garage door support you need from chamberlain group.
We design and engineer residential garage door openers commercial door operators and gate entry systems.
Look for full service liftmaster provantage dealers recognized for their expertise and quality of service.
When the door won t close or it closes only part way and immediately opens again the safety sensors are the first thing to check.
Garage door reverses immediately after touching the floor.
