Well - i'd get a Tech out there that specializes in A/C - higher whine noises could be a restriction in airflow path or possible a bearing starting to go. The investment in the tech buys piece of mind or diverts a headache - food for thought... dang things, unlike us, don't last forever.
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RAM 22' DRW 3500 Crew LB 40 gal reserve tank / RETRAX Bed Cover / 2020 373RD HC / IS / MOPEKA Tank Monitor / Furrion Side&Rear Cameras
Slide Toppers / EMS-HW50C / Sailun 85's
3rd AC / Dometic 320
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