01-25-2019, 05:20 AM
It's been a couple years so bear with my hazy memory. I think those 2 black relays have something to do with either the 220v heating element which is unique to Newells. Maybe something to do with the inside switch to change from air conditioner to the 220v heating element? Rudy can correct my memory.
Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486
1993 Newell 39' #337