Forum Discussion

Tryinlinux's avatar
Tryinlinux
Explorer
Oct 05, 2017

1994 Holiday Rambler Diesel Pusher Engine compartment blower

Hello all, I am looking for a little info on my HR DP motorhome. In the engine compartment there is an electric blower that runs all the time the engine is running. The coach has vents on either side on the back and I am not sure how this is supposed to be plumbed ( no hoses on it when I bought it), and I cant seem to find any info in all of the manuals I have for the coach. Does anybody know its function, and how it is supposed to be hooked up? Any advise is appreciated.
Thank you
Class A
  • Ava's avatar
    Ava
    Explorer
    Oct 05, 2017
    Are you sure it is not just the vacuum pump operating Some of those run continuously with the key on.
  • dougrainer's avatar
    dougrainer
    Nomad
    Oct 05, 2017
    Older HR had a rear Side mounted Dash AC Condenser. It had an electric fan to blow thru it. Is this fan mounted on a Black Radiator/Condenser? Doug
  • johnhicks's avatar
    johnhicks
    Explorer
    Oct 05, 2017
    My 93 has the side-mount AC. It's on the passenger side and can clearly be heard.
  • Tryinlinux's avatar
    Tryinlinux
    Explorer
    Oct 06, 2017
    Thank you all for your response. It is not an AC condensor fan, it is more like ventilation in the engine compartment, but I am not sure how it is plumbed to do so.
  • johnhicks's avatar
    johnhicks
    Explorer
    Oct 06, 2017
    The only other thing I can think of is Aux Heat (switch on dash). Hot coolant circulates through a radiator under the bed and the blower forces hot air out into the bedroom. That blower would run all the time it's switched on.
  • Ivylog's avatar
    Ivylog
    Explorer III
    Oct 06, 2017
    A few people added a 12V fan to help cool the engine compartment but that was after you shut the engine off. Does it run anything the key is on?
  • Tryinlinux's avatar
    Tryinlinux
    Explorer
    Oct 06, 2017
    the back of the motorhome has a louvered vent on each side, nothing connected to them, and yes the blower runs anytime the engine is running.I have not seen anything like this on other coaches, only a side grill if you had a side mounted radiator.
    Thanks again for all the replies. I would show a picture but I dont know how to just add it to a message. The pic is on my laptop, not at a url

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