25
●
Check Before Requiring Services
Symptom
Cause
Remedy
Air conditioner does not run
at all although power is turned
on.
Power failure or after power failure
Press ON/OFF operation button on remote
controller again.
Operation button is turned off.
●
Switch on power if breaker is turned off.
●
If breaker has been tripped, consult your dealer
without turning it on.
Fuse blow out.
If blown out, consult your dealer.
Poor cooling or heating
performance.
Air intake or air discharge port of indoor
and outdoor units is clogged with dust or
obstacles.
Remove dust or obstruction.
Wind speed switch is set to “Low”.
Change to “High” or “Strong”.
Improper temperature settings
See the section “
■
Tips for Energy Saving”.
Room is exposed to direct sunlight in cooling
mode.
Doors and /or windows are open.
Air filter is clogged.
See the section “
■
Care and Cleaning”.
Too much heat sources in room in cooling
mode
Use minimum heat sources and in a short time.
Too many people in room in cooling mode
Reduce temperature settings or change to “High” or
“Strong”.
If your air conditioner still does not work properly although you checked the points as described above, fi rst stop the operation and
turn off the power switch. Then contact your dealer and report the serial number and symptom. Never repair your air conditioner by
yourself since it is very dangerous for you to do so. You also report if the inspection mark
and the letters E, F, H, L, P in
combination with the numbers appear on the LCD of the remote controller.
■
Tips for Energy Saving
Avoid
●
Do not block the air intake and outlet of the unit. If either is obstructed, the unit will not work well, and may
be damaged.
●
Do not let direct sunlight into the room. Use sunshades, blinds or curtains.
If the walls and ceiling of the room are warmed by the sun, it will take longer to cool the room.
Do
●
Always try to keep the air filter clean. (See the section “
■
Care and Cleaning”.) A clogged filter will impair the performance of the unit.
●
To prevent conditioned air from escaping, keep windows, doors and any other openings closed.
N OT E
Should the power fail while the unit is running
If the power supply for this unit is temporarily cut off, the unit will automatically resume operation once power is restored using the
same settings before the power was interrupted.
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Summary of Contents for S-18MK2U6
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