Originally Posted by sallylillian
Not sure what unit you have but in my 2008 Allure I have a fan unit in the tank bay and a thermostat control, its hidden behind the door access on the left.
Are you sure it has a fan? In my discussion with tech support at CC (Greg) troubleshooting why my heat exchanger fuse was blowing, he advised there was a heat exchanger (little radiator only) in the wet bay with no fan.
Also, I notice there are only three circulating pumps on my AH unit; one for Zone 1 (front of coach), one for Zone 3 (rear of coach) and a third for the engine heat. Is the wet bay exchanger linked to one of those zone pumps and if so, which one.