Furnace blower noise
I have a 2009 Keystone Sprinter 27rls tt that we where camping in last night, temps dipped to upper 30's so I had the furnace on. Everything was fine then all of a sudden the blower still blew hot air...
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My experience with furnaces is that they are all NOISY, even if there is nothing wrong with them. The furnace coming on in the middle of the night has woken me up many times.
