11
TROUBLESHOOTING
Symptom
Problem
See Page
NORMAL
FUNCTION
Mist or steam are
emitted:
z
During Cooling or Dry operation, a thin mist may be seen emit-
ted from the indoor unit. This results from the sudden Cooling of
room air by the air emitted from the air conditioner, resulting in
condensation and misting.
—
*
z
During Heating operation, the outdoor unit’s fan may stop, and
steam may be seen rising from the unit. This is due to the Auto-
matic Defrosting operation.
12
Airfl ow is weak or stops:
*
z
When Heating operation is started, the fan speed is temporarily
very low, to allow internal parts to warm up.
*
z
During Heating operation, if the room temperature rises above
the thermostat setting, the outdoor unit will stop, and the indoor
unit will operate very low fan speed. If you wish to warm the room
further, set the thermostat to a higher setting.
—
*
z
During Heating operation, the unit will temporarily stop operation
(between 4 and 20 minutes) as the Automatic Defrosting mode
operates. During the Automatic Defrosting operation,
will
be shown on the remote controller display.
12
z
During Dry mode, the indoor unit will operate at low speed; in
order to adjust room humidity, the indoor unit s fan may stop
from time to time. Also, the fan may operate at very low speed
when adjusting room humidity.
—
z
In the monitor AUTO operation, the fan will operate at very low
speed.
—
Water is produced from
the outdoor unit:
*
z
During Heating operation, water may be produced from the out-
door unit due to the Automatic Defrosting operation.
12
thermo sensor
display on the remote
controller is fl ashing:
z
The room temperature sensor may be malfunctioning. Please
consult authorized service personnel.
—
CHECK ONCE
MORE
Doesn’t operate at all:
z
Has the circuit breaker been turned off?
z
Has there been a power failure?
z
Has a fuse blown out, or a circuit breaker been tripped?
—
z
Is the timer operating?
—
Poor Cooling (or *Heating)
performance:
z
Is the air fi lter dirty?
z
Are the air conditioner’s intake grille or outlet port blocked?
z
Did you adjust the room temperature settings (thermostat) cor-
rectly?
z
Is there a window or door open?
z
In the case of Cooling operation, is a window allowing bright
sunlight to enter? (Close the curtains.)
z
In the case of Cooling operation, are there heating apparatus
and computers inside the room, or are there too many people
in the room?
—
If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, turn off the
electrical breaker, and consult with authorized service personnel.
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