If the door does not properly reverse on striking the 2 4 then the garage door opener should be disengaged until the unit is either adjusted according to the instructions in the owners manual repaired or replaced with a new garage door opener.
Fixing a garage door opener that wont reverse.
Have 1 2 craftsman chain garage door opener.
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.
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.
One quick test is to place a 2 4 on the floor of the garage in the door s path.
Check for interference from adjacent photo eye sensors of any brand.
Check garage door for binding.
Door starts down then stops before it is closed.
If you ve tested your garage door opener s auto reverse and found it requires too much force for the door to reverse or it doesn t reverse at all you can adjust the settings on the garage door opener controls.
Craftsman garage door opener does not reverse direction.
It only comes up and won t go down.
To access the controls use a stepladder to reach the main part of the opener s motor.
Garage doors may display a variety of symptoms if sensors need attention.
A few minutes every six months or so will.
You did get plenty of extra life from your opener and i would recommend buying a new one.
I disconnected the chain.
This is almost always the result of a.
Garage door reverses before hitting the floor.
It went up ok but does not return down.
Two possible problems can lead to a garage door reversing before it even touches the floor.
It doesn t sound like an easy fix.
Press and hold the wall console button until the garage door is completey closed.
You push the button to close the garage door.
If any object blocks the path of the infrared sensors the garage door opener will not activate or will reverse if operating.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
It goes partway down reverses direction and goes back up again.
Garage door opener won t open all the way fix.
If an operational problem exists and the garage door opener will not close the opener can be forced to close.
How to fix a garage door that keeps reversing.
An incorrectly adjusted garage door opener and sensor can cause damage to the garage door motor lift mechanism your house or worse a person or pet.