You might be out of range.
Guardian garage door won t open.
The close limit switch may need adjusting.
If you own a guardian 628 electronic garage door opener and it will not open or close count the number of beeps.
Your garage door has set limit switches that instruct the motor when to stop running both when it is opening and when it is closing.
Limit adjustments define the points at which the garage door will come to rest in the open or closed position.
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.
When your garage door won t open with the remote there are few things that can cause this problem.
The antenna on the motor could be damaged or blocked from the signal.
Disconnect the door from the trolley and try the test.
Make sure it is hanging down from the motor.
Many garage doors have a powerful torsion spring located horizontally above the door.
If the garage door opens correctly but fails to close completely there may be one of three common causes.
If the door opens with the wall switch a simple battery change in the remote should do the trick.
When the door is lowered the spring winds up tightly creating a pulling force that helps lift the door up.
It is odd for any opener to not open at least some.
It can easily be.