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Before asking for servicing or Before asking for servicing or repairs, check the following points.repairs, check the following points.
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Condensation forms on the back of the indoor unit.Condensation forms on the back of the indoor unit.
•• Condensation on the Condensation on the back of tback of the indoor unit is he indoor unit is automatically collected automatically collected and drained out.and drained out.
Indoor unit or outdoor unit makes a strange noise.Indoor unit or outdoor unit makes a strange noise.
•• When the temperature When the temperature changes sharplychanges sharply, the indoor or outdoor unit , the indoor or outdoor unit may make may make a strangea strange
noise (such as a tit-tack noise or flowing noise) because of noise (such as a tit-tack noise or flowing noise) because of the expansion/contraction ofthe expansion/contraction of
parts or change in parts or change in refrigerant flow.refrigerant flow.
The room air smells.The room air smells.
A bad odor cA bad odor c omes from the air conditioner.omes from the air conditioner.
•• Smells absorbed in Smells absorbed in the wall, cthe wall, carpet, furniture, clothing, arpet, furniture, clothing, or furs are or furs are coming out.coming out.
•• During PURE operation, During PURE operation, a small amount a small amount of ozone of ozone is produced, and is produced, and you might you might notice thenotice the
smell.smell.
The OPERATIThe OPERATION indicator turns on ON indicator turns on and off.and off.
•• The indicator turns on and off The indicator turns on and off (1 Hz) when pow(1 Hz) when power is restored afteer is restored after a power fr a power failure or whenailure or when
the power main switch is set to on. Reset the circuit breaker to ON.the power main switch is set to on. Reset the circuit breaker to ON.
Frost forms on the outdoor unit during heating operation. (heat pump models)Frost forms on the outdoor unit during heating operation. (heat pump models)
Water is drained from the outdoor unWater is drained from the outdoor unit.it.
•• Frost somFrost sometimes forms on tetimes forms on the outdoor unit during heating operhe outdoor unit during heating operation. In that casation. In that case, the unite, the unit
automatically performs defrosting (for 2 to 10 automatically performs defrosting (for 2 to 10 minutes) for improving the heating efficiency.minutes) for improving the heating efficiency.
•• In the defrostIn the defrosting operation, ting operation, the airflow from he airflow from both the indoor both the indoor and outdoor units and outdoor units stops.stops.
•• A hiss sound A hiss sound is heard when is heard when the flow of the flow of the refrigerant is the refrigerant is changed for changed for defrosting.defrosting.
•• The water resulting The water resulting from automatic from automatic defrosting during the hdefrosting during the heating operation is draeating operation is drained fromined from
the outdoor unit.the outdoor unit.
The air flow changes even The air flow changes even though the FAN button is not set to the though the FAN button is not set to the AUTAUTO mode.O mode.
•• When the temperWhen the temperature of the ature of the blown air goes blown air goes down during heating down during heating operation, the airoperation, the air
conditioner automatically changes or stops the air flow from the indoor conditioner automatically changes or stops the air flow from the indoor unit so that theunit so that the
people in the room do npeople in the room do not feel chillyot feel chilly..
A white mist of chilled air or water is generated from the outdoor unit.A white mist of chilled air or water is generated from the outdoor unit.
•• Steam is sSteam is sometimes generated ometimes generated from the from the indoor unit during cooling indoor unit during cooling operation or theoperation or the
outdoor unit during defrosting operation.outdoor unit during defrosting operation.
Automatic operation of vertical air flow louvers (heat puAutomatic operation of vertical air flow louvers (heat pump models)mp models)
•• When the room When the room temperature or temperature or outdoor temperature outdoor temperature is high during tis high during the heating operation,he heating operation,
the vertical air flow louvers close once and then the vertical air flow louvers close once and then set themselves automatically to theset themselves automatically to the
original position setting again.original position setting again.
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