Garage doors use radio frequencies to open and close.
Garage door opener randomly works.
This is related to the up limit switch.
There are a few unusual factors that can cause your door open by itself.
Try making small adjustments.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
Residential electric garage door openers manufactured after 1993 are equipped with two safety mechanisms that operate while the door is closing.
The first is photoelectric and the second is mechanical.
When the garage door opener works intermittently the logic board may be experiencing radio frequency rf interference from nearby sources such as security lights ham radios and some electronics.
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.
Locate and eliminate the source of the rf interference.
Here are a few scenarios we ve come across.
Whether you re using the passcode entry the buttons inside the garage or your remote opener the openers and the garage door itself must be on the same frequency.