Garage Door Opener Goes Down But Not Up

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 goes down but not up.

When the logic board wears out it can cause your garage door to close then open and vice versa without explanation. This is almost certainly an electronics problem. Try making small adjustments. There is a latch in the circuit that keeps the down motor on until the lower limit switch is tripped.

Adjust the limits as needed. Try opening the garage door with the remote and see what happens. Two things stop the lower direction travel of an overhead door. Now put a step ladder under your garage door opener and climb it.

To fix this issue increase the down limit one quarter turn. If the door goes up but you can t make it go down you probably need to adjust the sensors. They both have lights and both lights should be on. Disconnect the pre wire from the garage door opener.

Other things could be wrong but they are in the weird category. If your garage door hits it bounces up and starts to open again your garage door is working well. Connect the white wire from the sensor to the white terminal of the garage door opener and then the black and white wire to the grey terminal. Check if the limits are properly set.

Make sure only the safe t beams that came with this garage door opener are installed. There is one on each side of the door. If it is a new installation check the postion of the door arm. Now press the remote control.

Now point the safety sensors at each. To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down. This brain can wear out in time so you could need a replacement. If the door then goes down when you press the button hit the button again before the door hits the ground and see if it goes up.

Get logic board replacement. Now it may be the lower limit switch itself but it s more likely to be a relay or ic problem. Your garage door s logic board is the brain of your garage door opener. Check if the safe t beams red led light is flashing.

Garage door starts down then stops and goes back up or safe t beam system malfunction. This is related to the up limit switch. However if your garage door doesn t bounce back up then you know you have a problem. Go along with your safety reversing sensors.