We have a 2015 Heartland Big Country 3650 RL. The rear ducted AC went out early summer and we replaced it with a RecPro (Houghton) unit. good reviews. Very quiet. Install was a snap. Well designed unit. Problem was, it could not cool well enough. RecPro first replaced the plenum and remote, then the entire unit, then the motherboard on the outside unit. Now the thing cools way too much and won't stop cooling unless I turn it off. RecPro has given up and offered to refund. It appears they have a significant quality control/service problem. Any input on a better replacement? I've looked at Furrion, Coleman (Airxcel) Mach15 and Dometic Atwood Aircommand.