I found the Techlon rep (Brian in PA) and sent him an email. He replied right away. The relay is soldered to the board but if I pull the board they will repair and send back. $125 an hour plus parts and should be no more than 1 hour. So I’m guessing $150 to $200.

Or $540 for a new board or $690 for a new Techlon unit.

Or I double up the wires and run all 4 docking lights with one switch...cost $0.

Thoughts?
Mark