When the opener is activated the screw rotates causing the nut to move until it reaches the switch.
Garage door opener stops and starts.
Doing this can save you some amount of cash.
The problem occurs with all of the controllers wired opener wireless keypad 2 remote controllers.
Finally it s possible the garage door opener s motor.
Sometimes the limit switch is activated by the movement of a specially shaped nut traveling on this track.
This fails to tell the door it is time to stop and the opener tries to drive the door into the ground again exceeding what the door believes to be allowable tension.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
The safety sensors are properly aligned and the show the correct amber green lights.
Turn off the sure lock aka vacation mode on the wall console check if limits are properly set check the door balance condition and door spring check opening force control or force settings.
The lights on the main unit do not flash when the door travel is stops unlike when the safety sensors detect something.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Set a safety ladder under the garage door opener.
The logic board receives and responds signals to any remote.
Some models have two screws labeled.
The travel limit switch mounting setscrew can vibrate loose allowing it to move or fall off.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Open up the case and look for a screw type track that moves when the opener runs.
You might need to consider replacing it if your door is not working properly or you may purchase a new opener.
Locate the limit switch adjustment either on the back of the opener or behind the light bulb s lens cover.
It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned.