Demand call on a 2014 carrier heat pump split system with two zones. Found the air handler and the secondary pan underneath the air handler in very bad shape due to water damage. Also found the main zone opening and closing on its own, intermittently. Customers asked to speak to a comfort adviser about replacement. Both zone dampers and the zone controller need to be replaced when doing the install . This has to be written into the sale . The bypass damper also needs to be looked at it looks like it needs to be enlarged .