Originally Posted by
Dave Mortensen
... I might see garage doors without electric eyes 30% of the time, how do you test those?
Dave,
Well ... depends upon when the operators were installed. "Back when" the sensors were not available. Can't test for something that was not required "back when" or not installed.
On the other hand there are those sensors that are installed on top of the operator unit and below the ceiling or up in the attic space over the garage. Many images have been posted here with so much work done to install the sensors other than where they belong.
If I run across a home where there are no sensors and the operator unit is of the age "back when" I put a general comment in the report with a recommendation to have the sensors, etc. installed.