Originally Posted by gramps66
We are having more issues. We have a 2009 H R Endevouer PDQ 41. Took the coach in for end of season work and have no dash heat or defrosters. Toes were frozen had a 3 hour ride to dealership. After 4 weeks of going back and forth trying to get things done (covered or NOT covered under warranty ). Went to get coach and still no dash heat or defrosters they say that is normal cause its a long way to push antifreeze. I told them they were full of [moderator edit] that would be a SAFETY hazard while driving in cold weather. I don't expect it to be 80 or 90 degrease, but at least warmer. temp gauge fluctuates between 178 and 181. Asked dealer if there was a shut off valve back by engine, they said no. Talked with friends with coaches and they something is wrong. Asking for more input. Thanks in advance.
I had the same issue with a 2001 dutchstar. AFTER I determined the the water control valve was working I found a small black canister in the hot water supply line. Nobody could tell me what it was, so I removed it and found that it was a very fine filter installed by the factory as a temporary measure to remove casting sand from the engine block. I removed it and had fabulous heat.