Rich wrote:
The Delta unit will wire to the same terminals that the wall button
is wired
to. All the installation instructions are included and easy to
follow.

It's a very simple fix.

Rich
http://www.garage-door-hardware.com

How do you hook a 3-wire receiver to a 2-wire push button terminal?
Where does the receiver get it's power from?

Personally I think his problem is in the main logic board (receiver
board loses power from main board while the light relay is energized) &
not the receiver so it's probably just a matter of time before the unit
dies altogether.

Doordoc