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.

Garage door opener goes down but not up.

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. Two things stop the lower direction travel of an overhead door. If it is a new installation check the postion of the door arm. 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.

Now it may be the lower limit switch itself but it s more likely to be a relay or ic problem. Get logic board replacement. 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. Try making small adjustments.

This is almost certainly an electronics problem. They both have lights and both lights should be on. Adjust the limits as needed. This will cause the trolley to move into position and reconnect to the garage door.

To reconnect the garage door to your liftmaster garage door opener manually close the garage door pull the emergency release handle down. Now point the safety sensors at each. Check if the safe t beams red led light is flashing. To fix this issue increase the down limit one quarter turn.

Make sure only the safe t beams that came with this garage door opener are installed. This is related to the up limit switch. Check if the limits are properly set. Your garage door s logic board is the brain of your garage door opener.

Now put a step ladder under your garage door opener and climb it. This brain can wear out in time so you could need a replacement. There is one on each side of the door. You ll then want to test it again and if it s not right keep adjusting the down limit nob until your garage door hit the board and bounces back up.

Other things could be wrong but they are in the weird category. Try opening the garage door with the remote and see what happens. If the door goes up but you can t make it go down you probably need to adjust the sensors. There is a latch in the circuit that keeps the down motor on until the lower limit switch is tripped.

Now press the remote control. T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener. Disconnect the pre wire from the garage door opener. Go along with your safety reversing sensors.