brown774 Report post Posted June 23, 2017 We have a 2007 Monacho Diplomat in the AZ heat. I installed a portable 10,000 BTU AC unit and vented it out a window. I heard a humming sound coming from the Inverter Bay and when I looked I saw a square wall mounted component that sounds like a fan but I don't detect air movement. Does anyone know what it is? Share this post Link to post Share on other sites
hermanmullins Report post Posted June 24, 2017 Might it be a suction fan? Check it by holding a tissue close to it and see if it is sucked to it. If so it is to remove hot air from the bay. Herman Share this post Link to post Share on other sites
five Report post Posted July 4, 2017 Call REV Group that now owns Monaco. Share this post Link to post Share on other sites
