Vacuum's dust sensor indicator (if equipped) never changes, always showing clean or always dirty

Safety first: Remove the battery before cleaning internal sensor areas.

• 1. Locate dust sensor: Refer to the manual; it is often near the air path in the main body or nozzle.
• 2. Clean sensor window: Use a soft, dry cloth or cotton swab to gently wipe the clear plastic window over the sensor.
• 3. Test with dusty area: Reinstall the battery and vacuum a visibly dusty patch. Observe if the indicator changes.
• 4. If indicator remains stuck: The sensor or its circuitry is likely faulty. Functionality of the vacuum is usually unaffected; sensor repair requires PCB replacement if desired.