My garage has two doors, each with their own openers.
One of them started 'not closing' with the remote recently.
It would start to close then immediately return to full retract. As if something was in the way. ???
Okay. The safety sensors must have gotten bumped and need to be re-aligned.
Nope. That didn't do it. And NOW I notice the red light on one sensor flickers. Use to be solid when nothing was in the way.
Checked all the wiring and noted they seemed to be loose at one connection.
GREAT! Started working correctly again... ONCE!?

Oh well. Ordered and received a new set of safety sensors.
Installed and started working correctly again... and again ONCE!

What the crap?

My garage door opener, of course, is not the run-of-the-mill Chamberlain or Liftmaster or such. It happens to be an Allister Access 3000.
Parts are still available but WHAT PARTS DO I NEED? ???
Oh, and btw, this is the side my Valkyrie lives in.
