On this October 13 HVAC service in Orlando, we documented blower-wheel buildup, deposits consistent with suspect microbial growth, localized corrosion, and uneven return-lining coating with exposed surfaces. The story begins with those conditions, then shows protected access, component removal, mechanical agitation and collection, and the documented restoration results. Protective runners covered the stair hose route. We removed the blower assembly for component access and connected vacuum collection at the air handler. Micro-whip agitation through ceiling supply branches loosened accumulated material while negative suction drew it toward collection, helping contain disturbed dust. Source removal addresses deposited material; suitable component access allows work at the cabinet rather than only at room openings. Later views show the blower assembly reinstalled, a continuous light-colored coating over the return-cavity walls and base, and coated accessible supply boots. The return-cavity before-and-after pair documents the changed lining surface. Coating helps stabilize suitable prepared facing after cleaning; it does not correct an underlying moisture source or replace failed material. Localized rust and adhered material remain visible on blower surfaces. Final cabinet closure, register reinstallation and operating checks are not pictured. Suspect deposits require evaluation rather than being called confirmed mold. This record documents the photographed cleaning process and lining restoration, without promising measured airflow gains or microbial clearance.