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Hot air is emitted even though the unit is stopped
•
Hot air can be felt when the unit is stopped.
Several different indoor units are being run on the same system, so if another unit is running, some refrigerant will still flow through the unit.
Does not cool very well
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Dry operation.
Dry operation is designed to lower the room temperature as little as possible.
Refer to page5
.
Trouble Shooting
If one of the following malfunctions occur, take the measures shown below and contact your local dealer.
Warning
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Stop operation and shut off the power if anything unusual occurs (burning smells, etc.)
Leaving the unit running under such circumstances may cause breakage, electrical shock, or fire.
Contact your local dealer.
• If a safety device such as a fuse or a breaker frequently actuates;
Measure : Do not turn on the main power switch.
• If the ON/OFF switch does not properly work;
Measure : Turn off the main power switch.
• If water leaks from unit;
Measure : Stop the operation.
• The operation mode selector button does not work well.
Turn off the power.
If the system does not properly operate except for the above mentioned cases and none of the above mentioned
malfunctions is evident, investigate the system according to the following procedures.
Let them know the symptoms, system name, and model name.
1. If the system does not operate at all;
• Check if there is no power failure.
Wait until power is restored. If power failure occurs during operation, the system automatically restarts immediately after the
power supply is recovered.
• Check if no fuse has blown;
Turn off the power supply.
• Check if the breaker is blown.
Turn the power on with the breaker switch in the OFF position.
Do not turn the power on with the breaker switch in the Trip position.
(Contact your local dealer.)
2. If the system stops soon after starting the operation;
• Check if air inlet or outlet of outside or indoor unit is not blocked by obstacles.
Remove any obstacle and make it well-ventilated.
• Check if the remote controller display shows “Time to clean filter & element”;
Refer to the Operation Manual of the indoor unit. And clean the air filter or element.
3. The system operates but cooling or heating is insufficient;
• Check if air inlet or outlet of outside or indoor unit is not blocked by obstacles.
Remove any obstacle and make it well-ventilated.
• Check if the remote controller display shows “Time to clean filter & element”;
Refer to the Operation Manual of the indoor unit. And clean the air filter or element.
• Check the temperature setting.
Refer to “Operation Procedure”.
Breaker
ON
OFF
Switch
Trip position
Trouble Shooting
• Check the fan speed setting on your remote controller.
Refer to “Operation Procedure”.
• Check for open doors or windows.
Shut doors and windows to prevent wind from coming in.
• Check if there are too many occupants in the room during cooling operation.
• Check if the heat source of the room is excessive during cooling operation.
• Check if direct sunlight enters the room during cooling operation.
Use curtains or blinds.
• Check if the air flow angle is not proper.
Refer to “Operation Procedure”.
After-Sales Service and Warranty
After-sale Service
Danger
•
Exposure to this gas could cause severe injury or death.
Warning
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Do not disassemble, modify or repair the unit.
This may cause water leakage, electric shock or fire.
Contact your local dealer.
•
Do not remove or reinstall the unit by yourself.
Incorrect installation may cause water leakage, electrical shock or fire.
Contact your local dealer.
•
When asking your local dealer to repair, inform related staff of the details as follows:
• Model name and product No. of air conditioner
• Shipping date and installation date
• Malfunction:
Inform the staff of the defective details. (Malfunction code being displayed on the remote controller.)
• Name, address, telephone number
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Repair after the warranty term is expired
Contact your local dealer. If necessary to repair, pay service is available.
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Minimum storage period of important parts
Even after a certain type of air conditioner is discontinued, we have the related important parts in stock for 9 years at least.
The important parts indicate parts essential to operate the air conditioner.
•
Recommendations for maintenance and inspection
Since dust collects after using the unit for several years, the performance will be deteriorated to some extent.
Disassembling and cleaning inside require technical expertise, so we recommend entering a maintenance and inspection
contract (at a cost) separate from normal maintenance.
•
Recommended inspection and maintenance cycles
[Note: The maintenance cycle is not the same as the warranty period.]
Table 1 assumes the following usage conditions.
1. Normal use without frequent starting and stopping of the machine.
(Although it varies with the model, we recommend not starting and stopping the machine more than 6 times/hour for
normal use.)
2. Operation of the product is assumed to be 10 hours/day and 2,500 hours/year.
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