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Remounting
Grasp the sections near the front panel arms on both sides, and
hold the front panel so that it is nearly horizontal. Push the arm
shafts towards the outside so that they come into contact with the
top of the indentations on the right and left sides of the air
conditioner. Then push firmly until the arm shafts click into place.
After closing the front panel, press firmly on the parts indicated by
the arrows to securely fasten the panel in place.
Also refer to the figure that shows "How to replace the anti-mold
filter".
When using a footstool or the like, be
CAUTION
careful not to let it tip over.
Washing the front panel with water
• Clean the front panel gently using a soft sponge, or the like. Then
wipe away any remaining moisture.
• Neutral detergent may be used to remove stubborn dirt. Then rinse
thoroughly with water and wipe away any remaining moisture.
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 service center.
Trouble
Possible Cause
Air conditioner does
1. Power failure.
not run at all.
2. Leakage circuit
breaker tripped.
3. Line voltage is too
low.
4. Batteries in remote
control unit have
run down.
OPERATION lamp
Trouble in system.
blinks and air
conditioner does not
operate.
Compressor runs but
Obstruction in front of
soon stops.
condenser coil.
Poor cooling (or
1. Dirty or clogged air
heating)
filter.
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. (Outdoor
temperature is too
low for heating.)
OI-149-17-EG
Clicking sound is
heard from the air
conditioner.
OPERATION lamp
lights but outdoor unit
will not run.
The air conditioner is operable within the temperature ranges as
listed below:
COOLING
Remedy
1. Restore power.
2. Contact service
center.
HEATING
3. Consult your
electrician or
dealer.
4. Replace batteries.
A separately sold wired remote controller (STK-RCS-
7TWSUA) used with this air conditioner is also available. If
Contact service
you wish to use the wired remote control function, you will
center.
need to purchase both the optional wired remote controller
and its connection kit (STK-KCW2).
Remove obstruction.
1. Clean air filter to
improve 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 or try to use
another heat
appliance.)
Trouble
Possible Cause
In heating or cooling
operation, any plastic
parts may expand or
shrink due to a
sudden temperature
change. In this event,
a clicking sound may
occur.
The use of cellular
phones near the air
conditioner may
cause disturbance to
its normal operation.
OPERATING RANGE
Temperature
Indoor air
temperature
Max.
95 °F DB /
71 °F WB
Min.
67 °F DB /
57 °F WB
Max.
80 °F DB /
67 °F WB
Min.
– DB / – WB
WIRED REMOTE CONTROLLER
Remedy
This is normal, and
the sound will soon
disappear.
1. Turn off the power
then restart the air
conditioner after a
while.
2. Consult your
dealer.
Outdoor air
temperature
115 °F DB
0 °F DB
75 °F DB /
65 °F WB
– DB / 0 °F WB
17
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Troubleshooting
