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1

Set the Main Control Knob to the OFF position;
confirm that the power supply cord is connected
to a proper AC outlet.

Recommended

Use the air conditioner under
the following conditions:

• Operating temperature range.

(unit in 

°

C)

Indoor unit

Outdoor unit

D.B.T. W.B.T. D.B.T. W.B.T.

Maximum
Temperature
Minimum
Temperature

D.B.T.: Dry Bulb Temperature

W.B.T.: Wet Bulb Temperature

• Humidity does not exceed 90%.

Continuous operation at over 90% humidity
may create condensation and waterdrops on
the intake and outlet vents.

32

23

43

26

21

15

21

15

2

3

Set to either Low Cool or High Cool as required.
(FAN setting operates the fan only.)

* Caution: If the Main Control Knob is turned

off or changed to a fan setting from a cooling
operation setting, WAIT at least 3 minutes
before resetting to a cooling operation.

4

Set the Thermostat Control Knob at the
desired setting. (Usually “6 ~ 7” is a
recommended setting position.) If the room
temperature is unsatisfactory after a
reasonable amount of time, turn the control
knob clockwise to cool the room more, or
anticlockwise to cool the room less.

• When the Thermostat Control Knob is set to
10, moisture may freeze onto the coils and
prevent effective cooling. If this happens, turn
the Main Control knob to High Fan, and the
thermostat control knob anticlockwise. This will
quickly defrost the cooling coil so that normal
cooling can be resumed.

5

For fixed side-to-side air direction, set the Air
Swing Switch to ON until the desired air direction
is obtained, then move it to OFF.

For continuous side-to-side air circulation, set

the Air Swing Switch to ON and leave it there.

– 9 –

1

Set the Main Control Knob to the OFF position;
confirm that the power supply cord is connected
to a proper AC outlet.

32

23

43

26

21

15

21

15

Recommended

Use the air conditioner under
the following conditions:

• Operating temperature range.

(unit in 

°

C)

Indoor unit

Outdoor unit

D.B.T. W.B.T. D.B.T. W.B.T.

Maximum
Temperature
Minimum
Temperature
Maximum
Temperature
Minimum
Temperature

D.B.T.: Dry Bulb Temperature

W.B.T.: Wet Bulb Temperature

• Humidity does not exceed 90%.

Continuous operation at over 90% humidity
may create condensation and waterdrops on
the intake and outlet vents.

  

27

–

21

15

20

–

-5

-6

2

3

Set to either Low COOL, High COOL, Low
HEAT or High HEAT as required.
(FAN setting operates the fan only.)

* Caution: If the Main Control Knob is turned

off or changed to a fan setting from a cooling
or heating operation setting, WAIT at least 3
minutes before resetting to a cooling or
heating operation.

4

Set the Thermostat Control Knob to the desired
setting. (Usually “4 ~5” is a recommended
setting for heating and “6 ~ 7” for cooling.) If the
room temperature is unsatisfactory after a
reasonable amount of time, turn the control
knob clockwise or anticlockwise to make the
room cooler or warmer.

• When the Thermostat Control Knob is set to
10, moisture may freeze onto the coils and
prevent effective cooling. If this happens, turn
the Main Control knob to Fan, and the thermo-
stat control knob anticlockwise. This will quickly
defrost the cooling coil so that normal cooling
can be resumed.

5

For fixed side-to-side air direction, set the Air

Swing Switch to ON until the desired air direction

is obtained, then move it to OFF.

For continuous side-to-side air circulation, set

the Air Swing Switch to ON and leave it there.

– 10 –

Fan Motor and

1. Supply Voltage.

Less than - 10% by Rated.

Customer Restarted unit

Consult ELECTRICIAN.

Compressor

2. Fuse Box or Circuit Breaker.

Open Contacts.

immediately without

Repair Open Circuit.

won’t run.

waiting 3 minutes

WAIT FOR 3 MINUTES.

3. Power cord or Wiring Harness.

Pulled loose or Shorted.

Repair or Replace it.

4. Thermostat Setting.

Higher than ROOM TEMP.

Set it LOWER.

Fan Motor

1. Objects around Fan.

Locked Fan.

Fan Hitting Cowling or

Adjust Fan Position set screw.

won’t run

Foreign Materials.

Remove Foreign Materials.

Frozen Bearings.

Replace Fan Motor.

2. RESISTANCE between Wires.

Shorted/Open circuit.

Shorted or Burned out.

Replace Fan Motor.

3. Capacitor Fan Motor.

OHM Meter doesn’t Deflect.

Capacitor Defect.

Replace Capacitor Fan.

4. Main Control Switch.

No contacts at Position Shown.

Main Control Switch defect.

Replace Main Control Switch.

Compressor

1. Thermostat Setting.

Higher than ROOM TEMP.

Set it lower.

won’t run

2. RESISTANCE between

Shorted.

Winding Coil touched to the

Replace Compressor.

(Fan runs)

Terminal and the

Body.

Compressor Body.

3. RESISTANCE between

Shorted.

Rear Shorted or Burnt out.

Replace Compressor.

Terminals.

4. Overload Protector.

Infinity between Terminals.

Overload protector defect.

Replace Overload Protector.

5. Capacitor Compressor.

OHM Meter doesn’t deflect.

Capacitor defect.

Replace Capacitor Comp.

6. Thermostat.

No CLICK around position.

Thermostat defect.

Replace Thermostat.

7. Main Control Switch.

No contacts at Position shown.

Main Control Switch defect.

Replace Main Control Switch.

Insufficient

1. Thermostat Setting.

Higher or lower than ROOM TEMP.

Set it lower or higher.

cooling or

2. Ventilation Door open.

Open.

Reduces capacity.

Close Vent door.

heating

3. Air Filter dirty.

Clogged or Dirty.

Restricted air circulation.

Clean or Replace Air Filter.

4. Location of installation.

Sunlight hitting outdoor side

Restricted Heat Exchanger

Consider building an AWNING.

at cooling.

Obstacles.

Restricted Heat Exchanger.

Remove obstacles or

reinstall unit.

5. Evaporator/Condenser

Clogged or Dirty.

Restricted air circulation.

Clean by steam cleaner.

Coil obstructed.

6. Unit capacity for the room too

Not Satisfied.

Replace the Unit with

small.

bigger one.

7. Temp difference and

REFER PERFORMANCE

Leakage of refrigerant or

Locate repair leak.

Running Current.

EVALUATION.

refrigeration system is blocked.

Flush refrigeration cycle.

Noise

1. Source of Noise.

Vibration.

Faulty installation.

Reinstall unit or Reinforce

the installation.

Intermittent Noise.

Fan hitting objects.

Adjust Fan position or

remove Foreign Materials.

Refrigerant tubing touching

About 1/2" Clearance.

each other.

Fan splashing Drain Water.

Consider Attaching the Drain

Pan and pull plug in bottom

pan. (REFER INSTALLATION

INSTRUCTIONS)

No heating

1. Reversing Valve Coil.

Infinity between Coil.

Replace Reversing Valve coil.

(Fan and

2. Reversing Valve.

Resistance between  Reversing

Replace Reversing Valve.

Compressor run.)

Valve Coil.

Water dripping

1. Unit Installation.

Tilted to inside room.

Restricted run off.

Tilt unit to outside slightly.

inside room

2. Drain Tray-STYROFOAM

Clogged.

Clogged or blocked.

Remove the foreign materials.

Pieces blocking Drain

(REFER OPERATING

Channel.

INSTRUCTIONS)

Frozen

1. Thermostat Setting

Set too low for ambient

Outdoor TEMP. Low

Set Main Control Switch to

Evaporator

conditions.

(Night time)

Fan to melt ICE and Set the Temp.

control to higher temperature

2. Air Filter/Evaporator.

Clogged or Dirty.

Restricted air circulation

Clean Air Filter/Evaporator.

3. Temp. difference and

REFER PERFORMANCE

Leakage of refrigerant or

Locate repair leak.

Running Current.

EVALUATION.

refrigeration system is blocked.

Flush refrigeration cycle.

Frozen

1. Outdoor ambient

Heating Operation at Low

Outdoor ambient temp.

Set Main Control Switch

Condenser

temp.

outdoor ambient temp.

is Low.

to Fan to melt ICE.

– 11 –

The air filter behind the intake grille should be
washed at least every two weeks or as often as it
needs cleaning.

HOW TO CLEAN THE AIR FILTER:
1. To remove the air filter, grasp the tab on the filter

and pull to the right.

2. Vacuum the filter on the dusty side to remove

light dust.

3. Wash the filter, cleaner side up under gently flowing

water to wash out accumulated dust and lint.

4. If the filter is very dirty, use a mild household

detergent in the wash water.

Let the filter dry thoroughly before reinstalling it.
When reinstalling the filter, be sure the word “FRONT”
is facing you as you slide the filter back into place.

Clean the front grille with a clean cloth lightly
dampened with mild liquid dish-washing detergent.

Wipe off dirt with a soft, dry cloth (use a vacuum
cleaner to remove dust from the air intake.)
Use a cloth and water less than 40

°

C to remove

stubborn dirt (the cloth should be well-wrung).
Do not use the following cleansers as they cause
the paint to peel and lead to malfunctions:
Benzene, thinner, scouring powder, chemical-
soaked cloths, etc.

lukewarm water +
mild detergent

Vacuum cleaner

Clean the cabinet with mild soap or detergent and
lukewarm water.

* After long-term usage of room air conditioners, dust

and dirt will accumulate inside, lowering the perform-
ance.  This may cause the generation of odour or may
impede the drainage of the dehumidifying water.

* Besides regular cleaning of the air conditioner, a

separate annual check is also recommended
(chargeable). Please request your dealer to carry out
these checks.

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