[Carl in Tampa]

We are having problems with our garage door opener. We leave the house after watching the garage door close fully, and sometimes return to see the door standing open. I know it is not closing and immediately reopening because on one occasion a neighbor said it opened after we had been gone on vacation for two days.

The first time this happened was several months ago, so I changed the code. It started happening again a couple of weeks ago, so I changed the code again. Today, it happened again.

This happens only on our main (2 car) garage door; not on the golf cart door.

Our controller does not open the doors of other houses in the neighborhood, so it is unlikely that a neighbor's controller opens ours.

I am at a loss about what to do short of changing the entire unit.

Has anyone out there had a similar problem, and if so, how did you correct it?