[Richard]

Pay close attention to that diagram for two reasons. One, AH uses ground signals to turn relays off and on, so that’s the reason for the unusually wired external relays. Two, if wired differently than the diagram you will lose the “light turns off if burner faults” function inside the coach.

I have the additional Beckett box for fine tuneing or setting up different from default conditions if you want to borrow it.