Other signs include flashing garage door opener lights missing sensor light or flashing sensor lights.
How to test for a bad garage door opener switch.
A wall console unit for a garage door opener is not a complicated device so it s fairly simple to troubleshoot when something seems to go wrong.
Your garage door opener will look for a new remote signal press the button on your remote so the opener can pick it up and then the opener will store the new code.
Before you go looking to bend metal or replace parts you ll want to first check if the problem is as simple as a corroded switch contact.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
Depending on the model most work by connecting two to four wires onto terminals mounting the device on the wall and then plugging the unit into an electrical outlet.
Open the garage door and watch it closely as it opens.
Loosen the two terminal screws on the side of the opener where the bell wire attaches using a screwdriver.
Locate the bell wire that connects the wall switch to the garage door opener.
Here s how to tell if garage door sensor is bad five things to check.