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Suburban furnace

Busdriver
Explorer
Explorer
Have a suburban furnace, when the propane kicks on have a whistle sound for a few minutes. Old camper had Atwood never had this sound. The fan sounds normal

Busdriver

2019 2500 Chevy Duramax , - 2017 Grand Design 303 RLS
1 REPLY 1

eHoefler
Explorer II
Explorer II
CHeck for an obstruction in the heat exchanger or burner tube, Wasp nest or spider web.
2021 Ram Limited, 3500, Crew Cab, 1075FTPD of Torque!, Max Tow, Long bed, 4 x 4, Dually,
2006 40' Landmark Mt. Rushmore