Sharp KC-850U operation manual Troubleshooting, E-20

TROUBLESHOOTING

Before calling for service, please review the Troubleshooting chart below, since the problem may not be a unit malfunction.

SYMPTOM	REMEDY(not a malfunction)
Odors and smoke are not removed.	• Clean or replace the filters if they appear to be heavily
	soiled. (See E-15,E-16,E-18)
The Front Monitor illuminates green	• The air could be impure at the time the unit was plugged
	in.
even when the air is impure.	Unplug the unit, wait one minute, and plug the unit in
	again.
The Front Monitor illuminates or-	• Sensor operation is affected if the dust sensor openings
ange or red even when the air is	are dirty or clogged. Gently clean the dust sensors (See
clean.	E-15).
A clicking or ticking sound is heard	• Clicking or ticking sounds may be audible when the unit
from the unit.	is generating ions.
	• Check to see if the filters are heavily soiled.
The discharged air has an odor.	• Clean or replace the filters.
	• Plasmacluster Air Purifiers may produce a slight odor.
	This is normal and is a result of the Plasmacluster Ions
	refreshing the air.
The unit does not operate when	• Is the unit installed in a location that is difficult for the
	sensor to detect cigarette smoke?
cigarette smoke is in the air.	• Are the dust sensor openings blocked or clogged?
	(In this case, clean the openings.) (See E-15)
Filter Indicator Light is illminated.	• After cleaning or replacing filters, connect the power
	cord to an outlet and press the Filter Reset Button. (See
	E-15)
The Front Monitor are turned off.	• Check to see if the Lights OFF Mode selected. If so, then
	press the Lights Control Button to activate the indicator
	lights. (See E-14)
The Water Supply Indicator Light	• Check Styrofoam float for impurities. Clean the Humidify-
does not illuminate when the tank
	ing Tray. Ensure unit is located on a level surface.
is empty.
	• Check to see if the Humidifying Tray and Water Tank are
Water level in the tank does not	correctly installed. Check the Humidifying filter.
	• Clean or replace the filter when it is heavily soiled
decrease or decreases slowly.
	(See E-18 and E-19).Check to see if Clean Air & Hu-
	midify mode has been selected.
The Front Monitor lights change	• The Dust Monitor lights automatically change colors as
color frequently.	impurities are detected by the dust sensor.

E-20