Blew a door lock circuit board on a Saturday service call in downtown Portland

Guy calls in at 8am saying his freight elevator is stuck between floors with a pallet of restaurant supplies. I get there and the door lock relay is just clicking like crazy, not latching. I figure it's a bad contactor, pull the old board off, and there's a burn mark right next to the capacitor. Must have been a power surge or something. Took me 3 hours to swap it out because the replacement board had a slightly different pin layout and I had to rewire two connectors. Has anyone else had this issue with older GAL door lock boards acting up after a storm?

2 comments

2 Comments

williams904d ago

Yeah I remember @hayden_rivera mentioned those bad cap solder joints too, I think that's what causes the clicking thing. I had a similar issue on a GAL board last year after a storm, ended up just replacing the whole capacitor instead of the board. Saved me from having to mess with the pin layout like you did.

hayden_rivera4d ago

Read a forum post saying those boards had bad cap solder joints from the factory.