I'm in the process of installing a door closer on my garage.
The instructions go to great lengths to say that the door must be balanced and travel freely.
They include instruction on how to test the balance and freedom of travel.
I would check the manual to check what the requirements for your opener may be. And look for the fault clearing section in the manual, and follow these instructions.
It would be a good idea to check all the wiring connections. Especially, splices that may have been made in the wires.
The instructions go to great lengths to say that the door must be balanced and travel freely.
They include instruction on how to test the balance and freedom of travel.
I would check the manual to check what the requirements for your opener may be. And look for the fault clearing section in the manual, and follow these instructions.
It would be a good idea to check all the wiring connections. Especially, splices that may have been made in the wires.