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Calm
Before you ask for servicing or repairs, check the following points.
Inoperative
• The main power switch is turned off.
• The circuit breaker is activated to cut off power supply.
• The main power fuse has blown out.
• Stoppage of electric current.
Does not cool well or heat well
• The air inlet and/or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The fan speed is set to low.
• The air conditioner is set in the DRY mode.
• The set temperature is too high. (In cooling operation)
• The set temperature is too low. (In heating operation)
Indoor unit or outdoor unit makes a strange noise.
• When the temperature suddenly changes, the indoor or outdoor unit
occasionally makes a strange noise because of changing of refrigerant flow or
expansion work.
The room air is smelly or a bad odor comes from the air conditioner.
• Smells impregnated in the walls‚ carpets, furniture, clothing, or furs, come
out from the air conditioner.
Outdoor unit is frosted in heating operation.
Water drains from outdoor unit.
• The outdoor unit is sometimes frosted in heating operation.
In that case, the unit automatically performs defrosting
(for 2 to 10 minutes) for increasing the heating efficiency.
• In defrosting operation, both the indoor and outdoor units stop air flow.
• Hiss sound is heard when flow of the refrigerant is changed for defrosting.
• Resultant water of automatic defrosting in heating operation drains from
outdoor unit.
Air flow changes without FAN button set to AUTO mode.
• When the temperature of blown air drops in heating operation,
the air conditioner automatically changes or stops air flow from the
indoor unit not to make persons in the room feel chilly.
• Air flow of the indoor unit is occasionally changed in the cooling operation.
A white mist of chilled air or water is generated from the outdoor unit.
• The indoor unit in cooling operation or the outdoor unit in defrosting
operation occasionally cause steams.
Recheck
These are not failures.