It is your thermostat setting. If it is not set to “Auto” it will turn the AC blower on (just the fan) as well as the furnace.
In furnace mode, if the fan is set to Lo or High, the AC fan will operate and assist with air circulation. Setting the fan to auto will turn off the AC blower and should correct your issue.
What year and model of RV and what brand/model thermostat?
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Rob & Amy
2019 Passport 240BH SL (for sale)
2024 Cougar 29BHL (Taking delivery 5/11/24)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
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