I have had two freeze up on my 15 Anthem. Once was just bad luck. The second time, a truck service company put way too much freon in the system and the excessive freon froze up the system. I believe that the service company never called TempCon to determine what was supposed to go in there and added about twice the appropriate amount.
I don't remember the amount of freon, but it was spec'd at a much lower amount than many trucks use.
Gary and Dee, Zowie and Bowie (traveling cat sibs)
2019 Cornerstone 45B, X15-605hp, Imperial, Spartan K3,
2013 Honda CR-V toad, Demco Excali-Bar II,
Demco Baseplate, Demco Toad Light system, 73 de W5FI