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Old 11-04-2021, 06:58 AM   #12
jpwhite
Montana Fan
 
Join Date: Jan 2019
Location: TROY
Posts: 133
M.O.C. #23248
I have a 2019 3120RL, the rear thermostat has separate modes for heat pump and furnace. The furnace will only work if the furnace mode is selected. So mine does not switch. If the temp drops too low (like overnight) while set to heat pump mode, it will blow cold air.
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2019 20th Anniversary Edition 3120RL
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