HVAC diffuser suddenly stopped smelling after 3 months. Pump runs but no mist?
If the pump hums without fragrance, the atomizer core is likely clogged.
Run an Alcohol Flush: fill an empty bottle with 50ml of 95%-99% Isopropyl Alcohol, run a heavy cycle for 10-15 minutes to clear residue. Perform this every 3-6 months for maintenance.
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