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Toshiba XXXXXXX(X/X)
–24–
4-way Air Discharge Cassette Type
Owner’s Manual
EN
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 has blown out.
• The louvers are not directed correctly.
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 in cooling.
• The set temperature is too high (In cooling) or low (In heating).
▼ These are not failures.
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 expansion/ contraction of parts or change of refrigerant flow.
• A “busyu” sound is heard occasionally.
It is generated by the solenoid valve when it is actuated.
• A clattering sound is heard when the power is turned on.
It is generated by the outdoor unit during preparation for operation.
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.
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.
The fan does not stop when the operation is stopped.
• The fan runs in the self cleaning mode to dry the heat exchanger.
Air flow changes though the FAN button is not set to the 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 from the indoor unit is occasionally changed in the cooling operation.
A white mist of chilled air or water is generated from the outdoor unit.
• When the indoor unit in cooling operation or the outdoor unit in defrosting operation occasionally
steams.
Check these items. If any of these problems still remains, stop the operation, turn off the leakage breaker,
and then notifies the dealer of the serial number and details of the error. Never repair any part by yourself
as it is dangerous. When
and a combination of , , , , or and a number are displayed on
the remote controller, also inform the dealer of the display content.
24-EN
+00EH99930901-2_10L_4-way_OM.book Page 24 Friday, April 17, 2009 2:39 PM