It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running.
Garage door opener malfunctioning.
Here s how to tell if garage door sensor is bad five things to check.
If the door moves then.
It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned.
Other signs include flashing garage door opener lights missing sensor light or flashing sensor lights.
Misaligned photo eyes are another reason for malfunctioning garage door sensors.
2 the door does not move when you press the wall switch the first thing to do is to check that the breaker has not.
Finally it s possible the garage door opener s motor.
5 typical malfunctions with garage door openers 1 the door does not move when you press the remote if you have two remotes try the other one.
This is most likely the reason a garage door won t close.
This is related to the up limit switch.
The photo eyes.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Try making small adjustments.
Okay now that you know some of the common signs of garage door sensor malfunction you re ready for the next step troubleshooting.