Dash heat only blows cool air
I just bought a 1998 Newmar Mountain Aire with a Chevy 454. I turned on the dash heat, and it blows cool air. The air conditioning works great. The blower also works fine. Just no dash heat. Engi...
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The AC/Heater Core is on the front firewall on the passenger side. You will see the heater hoses going to it. The odds are, the electric (12 volt) heater control valve is bad. Go to Evanstempcon.com and you will see all the parts for your Dash AC/Heat system listed. Doug
