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Troubleshooting
Please carry out the following checks before making a service call.
Poor cooling
Poor cooling or heating
If the air-conditioner does not operate properly after you have checked the above points, or if any doubt still exists after you have
consulted page 21, or if things happen as shown on page 22, switch off the power and contact your dealer.
An alternative refrigerant (R410A) is used in this air-conditioner. When asking your
dealer for service or inspection and maintenance, explain the dealer about it.
Is there a power failure or a blown fuse?
Did you leave any doors or windows
open?
Are there too many people in the room?Is there a heat source in the room?
Is the air filter clean? (Not clogged?)
Has the power switch been turned off?
Have you set the thermostat at a suitable
temperature?
Is there any direct sunlight entering the
room?
The air-conditioner does not work at all.
Has the timer been set in the “ON”
position?
Proper installation
Pay attention to operating noises!
•
When you install the unit, take care to choose a place that can comfortably stand the weight of the unit and does not increase the operating noise
or vibration. If vibration is transmitted through the house, fix the unit with the aid of vibration-proof pads between the unit and the fittings.
• Select a place where cold or hot air, operation noises from the indoor and outdoor units do not cause any inconvenience to your neighbours.
• Do not leave any obstacles near the outlet and inlet of the outdoor unit. This may cause malfunctioning and increased operating noise.
• If you hear an irregular noise during operation, contact your dealer.
Inspection and maintenance
Depending on operating environment, the inside of the air-conditioner may become dirty after a few year operations. This will reduce
performance. In addition to normal cleaning, we would recommend inspection and maintenance. (This may lead the air-conditioner to
having a longer life without any trouble.)
• Contact your dealer, or any distributor, for inspection and maintenance. (There will be a charge for this service).
• We would recommend inspection and maintenance to be carried out during the off-season.
• If the supply cord of this appliance is damaged, it must only be replaced by a repair shop appointed by the manufacturer, because
special purpose tools are required.
Suitable installation position
• Do not put any obstruction in front of the indoor unit, preventing proper ventilation and functioning.
• Do not install the unit in any of the following places:
• Where there is a danger of leaking flammable gases.
• Where there is substantial splashing of oil.
• Malfunctioning due to corrosion may occur if the unit is installed in a spa where sulfide gases are generated, or in a seaside resort
exposed to sea breezes. Contact your dealer.
• The air-conditioner and remote control must be at least 1 metre away from a TV set or radio.
• Drain the dehumidified liquid from the indoor unit into a spot that drains well.
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