Brian in Michigan wrote:
I think with mine it just sounds that way because of the air being pulled in near the floor, so it sounds like it is working harder.
I do agree that it may just sound that way. However, now, there is no change in the sound or the Air flow.
I got a feeling that the door closing off the outside air is not closing. My trouble is I don't know just where that door is located so I can see if it's closing or not. Also it blew out little bit's of foam rubber after they worked on it last year. The repair man just said after a coach gets so old that rubber just falls apart.
As I said I just have a feeling that that rubber may be stopping the door from closing. Thanks