Something not working right — a sensor stuck on red, a noisy fan, a filter light that won't reset? Start here and fix the actual cause.
Troubleshooting
Troubleshooting
Air purifier changing speed on auto? That's auto mode working — the sensor speeds up for cooking, sprays, and pets. How to adjust sensitivity or lock a manual speed.
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Troubleshooting
Air purifier making noise? Check for plastic still on the filter, debris in the fan, a filter seated wrong, or an uneven surface. When a rattle means a real fault.
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Troubleshooting
Air purifier not improving air quality? The usual fixes: unwrap the filter, match CADR to your room, close windows, and stop expecting it to clear settled dust.
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Troubleshooting
Air purifier red light won't turn off? It usually means the sensor detects poor air or the filter indicator needs resetting after a change. How to reset and clean it.
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Troubleshooting
Air purifier smells bad? A new-filter plastic smell fades, musty means mold or moisture, and a burning or electrical smell means stop and unplug it now.
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Troubleshooting
Air purifier won't turn on or keeps losing power? Check the outlet and cord, child lock, the filter-door interlock, and the surge protector before it's a real fault.
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Troubleshooting
Air quality sensor always red or inaccurate? Usually a dusty sensor lens. Clean it, rule out humidity and placement, recalibrate, and know when the sensor is faulty.
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Troubleshooting
When to replace an air purifier filter: watch for the indicator light, weaker airflow, lingering smell, and a gray filter. True HEPA every 6–12mo, carbon 3–6mo.
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