If the door opens with the wall switch a simple battery change in the remote should do the trick.
Guardian garage door won t open.
Disconnect the door from the trolley and try the test.
The guardian units are the most difficult to acquire manuals but i am still in the process of searching data bases in hopes of finding an original one for electronic copy.
The close limit switch may need adjusting.
Make sure it is hanging down from the motor.
You might be out of range.
It can easily be.
The antenna on the motor could be damaged or blocked from the signal.
When the door is lowered the spring winds up tightly creating a pulling force that helps lift the door up.
There is a down limit setting that stops the door at the close position and open limit setting that stop the door at the desired open position.
Many garage doors have a powerful torsion spring located horizontally above the door.
If you own a guardian 628 electronic garage door opener and it will not open or close count the number of beeps.
It is odd for any opener to not open at least some.
When your garage door won t open with the remote there are few things that can cause this problem.
If the garage door opens correctly but fails to close completely there may be one of three common causes.
Limit adjustments define the points at which the garage door will come to rest in the open or closed position.