Ours makes as much noise in air conditioning mode or heat pump mode. But the heat pump does power up and power down it sees, where it blows harder and then hardly none at all, but the compressor is still running. Then when the coach reaches temperature, it shuts off completely, until it kicks on again.
The low fan is whisper quiet (outside and inside). The normal run sounds the same as the air conditioner running.
Now, when the furnace turns on, it sounds like a jet plane at take off. Are you sure you are not hearing the furnace. These newer furnaces are horribly loud outside. And its not just my camper, but camping in Alabama for the month of January this year, all newer makes and models have these furnaces that sound like jet planes taking off. It makes for a noisy camp ground at 6:00 am when walking the dog.
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2019 Montana High Country 375FL
2014 Chevy Duramax HD 6.6 - 3500 Diesel Dully Long bed Crew Cab
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