Unidentified Lever
I've recently purchased a 2003 Damon Ultra Sport, 40ft, Cat Pusher. (3126). The man who owned it before me passed away and he was the one who knew the coach. He put on this turn off lever for some pur...
Forum Discussion
wa8yxm wrote:slemnah wrote:
That looks like a heater core shut off valve to stop hot water from going into the heater core. It looks like it is closed. Try your dash heater and see if any heat comes out of it.
Steve
A common problem with many motor Homes is the flow control valve to the heater core.. Putting in a manual cut off is the lowest cost repair. and by the way, likely the best repair.
Follow the hose, If it connects to the the engine block or water pump and to the firewall, or to a box with a 2nd hose next to it then this goes to a 100% certainty instead of a very very strong suspicion.
Bingo! Absolutely correct. Most likely the OEM heater temperature control valve is defective and allowing a small amount of hot water to enter the heater core when the heater is shut off. This hot water will temper the cold air decreasing the cooling capacity of the air conditioning. If it were mine, I would leave the valve and open the valve in the cooler seasons and close the valve in the warmer seasons.
Ray
