■ Troubleshooting
If your air conditioner does not work properly, first check the
following points before requesting service. If it still does not
work properly, contact your dealer or a service center.
Trouble
Possible Cause
Air conditioner
1. Power failure.
does not run at
all
2. Leakage circuit breaker
has tripped.
3. Line voltage is too low.
4. Operation button is turned
off.
5. The wired remote control
unit or heat pump is
malfunctioning.
(The inspection mark
and the letters E, F, H,
L, P in combination with
numbers appear on the
LCD of the wired remote
control unit.)
Compressor
1. Obstruction in front of
runs but soon
condenser coil
stops
Poor cooling
1. Dirty or clogged air filter.
(or heating)
performance
2. Heat source or many
people in room.
3. Doors and/or windows are
open.
4. Obstacle near air intake or
air discharge port.
5. Thermostat is set too high
for cooling (or too low for
heating).
6. (Defrosting system does
not work.)
■ 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. (Refer to "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
Remedy
1. After a power
outage, press
ON/OFF operation
button on the wired
remote control unit.
2. Contact service
center.
3. Consult your
electrician or dealer.
4. Press the button
again.
5. Consult your dealer.
1. Remove obstruction
1. Clean air filter to
improve the airflow.
2. Eliminate heat
source if possible.
3. Shut them to keep
the heat (or cold)
out.
4. Remove it to ensure
good airflow.
5. Set the temperature
lower (or higher).
6. (Consult your
dealer.)
85
13-2. Concealed Duct Type (U, US Types)
■ Name of Parts (Indoor Unit)
CONCEALED DUCT
U Type (standard static pressure)
Air outlet grille
(optional)
US type (SLIM DUCT) for 125, 165 & 185
Rectangular solid duct (optional)
Water drain
Air intake side filter (rear)
■ Care and Cleaning
WARNING
● For safety, be sure to turn the air conditioner off and
also to disconnect the power before cleaning.
● Do not pour water on the indoor unit to clean it. This will
damage the internal components and cause an electric
shock hazard.
Air intake and outlet side (Indoor unit)
Clean the air intake and outlet side of the indoor unit with a
vacuum cleaner brush, or wipe them with a clean, soft cloth.
If these parts are stained, use a clean cloth moistened with
water. When cleaning the air outlet side, be careful not to force
the vanes out of place.
CAUTION
● Never use solvents or harsh chemicals when cleaning
the indoor unit. Do not wipe plastic parts using very hot
water.
● Some metal edges and the fins are sharp and may cause
injury if handled improperly; be especially careful when
you clean these parts.
● The internal coil and other components must be cleaned
regularly. Consult your dealer or service center.
Type
Period
(Depends on filter
U, US
specifications)
*Concealed duct type (U, US):
An air filter is not provided with this air conditioner at the time of
shipment. To get clean air and to extend the service life of the
air conditioner, an air filter must be installed in the air intake.
For installation and cleaning the air filter, consult your dealer or
service center.
NOT E
The frequency with which the filter should be cleaned depends
on the environment in which the unit is used.
Flexible duct (optional)
Water drain
Canvas duct (optional)
Air intake grille
(air intake)
(optional)
Electrical box