In general some have variable thermostat others snap disc around 45f-ish. It's made to prevent freezing. The lower it gets the tougher that job gets. Not a bad idea to make sure heat and fan works for sure. You have to locate the thermostat to get fan to kick on, if temp too high at the time you may need ice or air spray dusting spray can. My AH unit put off a lot on its own as well more while heating interior.
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95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
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