me (to an 'electronic appliance repair' service: hey can you check a PCB for a short for me?
them: what is it from?
me: a pool pump
them: no you need a pool pump company for that
me: it's not the pump itself, I just need someone to diagnose a fault in the board that is creating a short
them: it's probably the pump
me: it's not the pump, its the control board, can you just test it for me?
them: no we don't do pool pumps