M
Melanie NavarroAug 17, 2025
How to fix Sharp KC-840E when odours and smoke are not removed?
- MMary GonzalesAug 18, 2025
If your Sharp Air Cleaner isn't removing odours and smoke, the filters may be heavily soiled. Clean or replace the filters.
To Next PageTo Next PageHow to fix Sharp KC-840E when odours and smoke are not removed?
If your Sharp Air Cleaner isn't removing odours and smoke, the filters may be heavily soiled. Clean or replace the filters.
Why does my Sharp Air Cleaner have an odour?
If the discharged air from your Sharp Air Cleaner has an odour, the filters might be heavily soiled. Try cleaning or replacing the filters. Also, note that Plasmacluster Air Purifiers emit small traces of ozone, which may produce an odour.
What to do if Sharp Air Cleaner monitor is orange or red when the air is clean?
If the Front Monitor on your Sharp Air Cleaner illuminates orange or red even when the air is clean, the dust sensor openings may be dirty or clogged. Gently clean the dust sensors.
Why Sharp KC-840E doesn't work when cigarette smoke is in the air?
If your Sharp Air Cleaner doesn't operate when cigarette smoke is in the air, it could be that the unit is installed in a location where it is difficult for the sensor to detect cigarette smoke or that the dust sensor openings are blocked or clogged. If the openings are blocked, clean them.
How to turn off Filter Indicator Light on Sharp KC-840E Air Cleaner?
If the Filter Indicator Light is illuminated on your Sharp Air Cleaner, replace the filters, connect the power cord to an outlet, and press the Filter Reset Button.
What to do if Sharp Air Cleaner monitor is green even when the air is impure?
If the Front Monitor illuminates green even when the air is impure on your Sharp Air Cleaner, the air could have been impure when the unit was plugged in. Unplug the unit, wait one minute, and plug it in again.
Why water level in Sharp KC-840E tank decreases slowly?
If the water level in the tank of your Sharp Air Cleaner does not decrease or decreases slowly, check to see if the Humidifying Tray and Water Tank are correctly installed and check the Humidifying Filter. Clean or replace the filter when it is heavily soiled.
Why Water Supply Indicator Light on Sharp Air Cleaner doesn't illuminate when the tank is empty?
If the Water Supply Indicator Light does not illuminate when the tank is empty on your Sharp Air Cleaner, check the Styrofoam float for impurities, clean the Humidifying Tray, and ensure the unit is located on a level surface.
What does it mean when Clean Air & Humidify Indicator Light is flashing on Sharp KC-840E Air Cleaner?
If the Clean Air & Humidify Indicator Light is flashing on your Sharp Air Cleaner, it indicates an abnormal humidity filter. Verify if the Humidifying Filter, Humidifying Tray, and Water Tank are properly installed, and then turn the power back ON.
Why are the Front Monitor turned off on my Sharp Air Cleaner?
If the Front Monitor is turned off on your Sharp Air Cleaner, check to see if the Lights OFF Mode is selected. If so, press the Lights Control Button to activate the indicator lights.
General| Type | Air Purifier with Humidifier |
|---|---|
| Humidification Method | Evaporative |
| Plasmacluster Ion Technology | Yes |
| Water tank capacity | 3.5 L |
| Filter Type | HEPA Filter |
General warnings and precautions for operating the air purifier.
Recommendations for placing and setting up the air purifier for optimal performance.
Overview of the main unit's display panel and indicator lights.
Instructions for operating the unit in Clean Air Mode without humidification.
Details on using the Clean Ion Shower Mode for rapid air purification.
Information on filter lifespan and replacement timing for HEPA, Deodorizing, and Humidifying filters.
