Why would a Falcon 50 Passenger temp run away from HOT in AUTO mode

Complaint: ¬†Cabin cold in flight in auto mode: EDIT squawk turned out to be : cabin cold in AUTO and in MANUAL. How could the heat ducts become clogged in a Falcon 50? I failed to realise early on that the cabin valve backing away from hot was normal operation. ¬†Also, when crew is max … Continue reading Why would a Falcon 50 Passenger temp run away from HOT in AUTO mode