I try to use the wall switch to close the garage door, the door goes down for a second and goes back up again. If I hold the switch on, it goes down all the way like it is supposed to. I try using the remote control; it goes down for a second and goes back up .
I checked the alignment of the receiver and transmitter, they look fine, but could not get the LED light to go on.
It is an Allister Access 3000 model. It is been working fine for around 6 years.