Winterizing, have cold water flow but no hot
I have a 2005 Jayco bunkhouse, first year using it. Trying to winterize it. Hooked air to the city water inlet. I was able to blow out the cold water lines but get nothing out of the hot water lines. I have drained and bypassed the hot water heater, opened the tank pressure relief valve, opened all faucets inside, opened the drain valves to the outside etc. I get air out of the cold water taps and drain but nothing out of the hot water taps or drain. My neighbor has had campers for years and he is stumped. Seems like we have done everything we are supposed to do. Just recently bought it, not sure if we had hot water while camping because we never used it but there was water in the hot water tank when I drained it. Any suggestions? TIA
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