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Heating capacity
If the outdoor temperature is too low, it is recommended that additional heating appliances be used in con-
junction with the air conditioner.
Power failure
Power failure during operation will stop the unit completely.
• The OPERATION lamp (green) on the indoor unit will start flashing when power is restored.
• To restart operation, push the START/STOP button on the remote controller.
Air conditioner operating conditions
For proper performance, operate the air conditioner in the following temperature conditions:
If air conditioner is used outside of the above conditions, safety protection may work.
Cooling Outdoor temperature : –5°C to 43°C
operation
Room temperature : 18°C to 32°C
CAUTION Room relative humidity – less than 80 %. If the air conditioner operates
in excess of this figure, the surface of the air conditioner may cause dewing.
Heating Outdoor temperature : –15°C to 21°C
operation
Room temperature : Less than 30°C
PROBLEMS AND CAUSES
CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the
dealer :
• The indicator lamps flash at short intervals (5 Hz) even though you have tried turning off the power
supply and turning on again after 2 to 3 minutes.
• Switch operation is erratic.
• The main power fuse often blows out, or the circuit breaker is often activated.
• A foreign matter or water has fallen into the inside of the air conditioner.
• Any other unusual condition is observed.
Before you ask for servicing or repairs, check the following points.
Recheck
Inoperative
• The main power switch is turned off.
• The circuit breaker is activated to cut off power supply.
• The main power fuse is blown.
• ON timer is set.
Does not cool well or heat well
• The air inlet or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The air filter is blocked with dust.
• The louver is not at the correct position.
• The fan speed is set too low.
• The set temperature is too high. (In cooling operation)
• The set temperature is too low. (In heating operation)