BAC Forum

General Boards => Technical Support => Topic started by: Gene Obie on October 11, 2022, 12:09:11 AM

Title: Relay identification
Post by: Gene Obie on October 11, 2022, 12:09:11 AM

Can anyone provide a description of what these relays circled in RED are used for? All other relays and breakers have a function table on the door but I can find no definition for these.

Title: Re: Relay identification
Post by: Steve Huber on October 11, 2022, 12:27:29 AM

Gene,
I'm pretty sure they are part of the dual control dash heat/AC system. That's where they were located on our 00 Marquis. See Acme AC in the heating and AC section of Coach Assist for a diagram.
Steve

Title: Re: Relay identification
Post by: Gene Obie on October 11, 2022, 02:40:57 AM

Thanks, number of relays matches and functions not duplicated in the other banks. So looks like maybe they used the same design here over a number of years.