Musty or moldy smell from vents when Payne air conditioner starts.

Safety: Turn off power before accessing the coil. Wear a mask and gloves if you are sensitive to mold.

• 1. Replace air filter: Install a new, quality filter to reduce dust and spores entering the system.
• 2. Inspect evaporator coil: Remove the coil access panel and visually inspect the coil and drain pan for slime or mold growth.
• 3. Clean coil (light DIY): Use a non-acidic, no-rinse evaporator coil cleaner approved for aluminum/copper. Follow the product instructions carefully.
• 4. Clean drain pan: Wipe or rinse the pan and add a condensate pan treatment tablet to inhibit growth.
• 5. Consider professional cleaning: For heavy contamination or duct issues, hire a professional to deep-clean the coil and evaluate duct cleaning or UV air treatment options.