Hi, I've been troubleshooting my generator in my 380 DA for a while now. Typical start and run until you let go of the "preheat (sensor bypass)" switch. All the sensors and K1/K2 relays check out. I had a specialist come out recently and he said that the CO detectors are wired to a relay that will shut down the generator if they activate. He recommended that I replace them. I don't see this in any of the wiring diagrams for the boat... did these come wired in this way? If so, we're the heck is this relay? Thanks.