Below are three reasons why your garage door opens on its own and some quick fixes you can try.
Garage door opens by itself and won t close.
Get logic board replacement.
Clutter or obstructions that block the sensor are the first problems to look for if your door won t close or in extreme cases open at all.
The button can easily get dirty and stuck in the pushed position.
Whether you re using the passcode entry the buttons inside the garage or your remote opener the openers and the garage door itself must be on the same frequency.
In the funniest of scenarios the problem will simply be due to an unplugged power cord.
The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again.
You might have absentmindedly unplugged the operator as you were exiting the garage through your internal door to the house.
Remove the bell wire from the single button control station s terminals and operate the garage door opener from the remotes.
Depending on the brand.
This will cause the door to open and close until the button becomes unstuck.
As these wires short against the housing the electrical impulse causes the door opener to activate.
To troubleshoot the garage door opener button make sure it s clean and free of debris.
Garage doors use radio frequencies to open and close.
First check the sensor lights.
Here are a few scenarios we ve come across.
Make sure all the transmitters you use to open and close the garage door are working properly pay close attention to buttons that could be sticking briefly or permanently.
This is of course a safety feature to prevent the heavy garage door crushing anyone or anything that might be in the pathway of the door when it comes down.
Yes it s possible although rare for your garage door to open by itself.
When the logic board wears out it can cause your garage door to close then open and vice versa without explanation.
When your liftmaster garage door opener opens and closes by itself here are the troubleshooting tips you need to follow.
Your garage door s logic board is the brain of your garage door opener.
Clean the button as well as the connections in the housing if this is the case.
If anything interrupts this beam of light the garage door will not close and the ceiling light on the opener mechanism will flash as mentioned in the previous step.
Disconnect the control station.
Residential electric garage door openers manufactured after 1993 are equipped with two safety mechanisms that operate while the door is closing.
This brain can wear out in time so you could need a replacement.
Sometimes a garage door won t open or close for one reason only the operator has no power connection.