PastorCharlie wrote:
dougrainer wrote:
What does the display state on the wall tstat? Doug
FAN: Auto
SET POINT: 72* F
MODE: Cool or Heat Pump if set to heat pump. Depends upon what mode is set.
OK If both Zone 1 and Zone 2 will show same thing AND you can go from Auto(fan) to the 2 fan speeds. Then the board is OK. Odds are you have NO 120 power to the roof AC unit. This can be a fault at the AC Breaker or also at the upper board 120 connections have had a loose connection and the wire nuts melted and came apart. BTW, you should have a FURNACE option on Zone 1. What Year/Brand/Model RV? IF you have a EMS system, that could also stop 120 power to the roof AC. Which AC is faulted? Zone 2? Doug