Why is the Cleanliness Monitor light red on my Sharp FP-J80TA when the air is clean?
- MMelissa GreenSep 12, 2025
If the Cleanliness Monitor light is red on your Sharp Air Cleaner even when the air is clean, it may be due to dirty or clogged dust(sensitive) sensor openings interfering with sensor operation. Gently clean the sensor filter or the back panel.












