Troubleshooting

Refer to the following chart if the air conditioner operates abnormally. This may save time and unnecessary expenses.

PROBLEM	SOLUTION
The air	• Check power status and then operate the air conditioner
conditioner does	again.
not work at all.	• Plug in or switch on the circuit breaker and then operate the
	air conditioner again.
	• Check if you have set the Off Timer. Operate the air
	conditioner again by pressing the Power button.
The temperature	• Check if you have selected Dry/Fan/Turbo/d'light Cool
adjustment is not	mode. In these modes, desired temperature is set to auto
working.	and you cannot adjust the temperature.

Cool/Warm air	• Check if the set temperature is higher(during Cool mode)/
does not come	lower(during Heat mode) than the current temperature.
out of the air	Press the Temp hr. + or – button on the remote controller to
conditioner.	change the set temperature.
	• Check if the Full HD filter is blocked by dirt. If there is a lot of
	dust on the Full HD filter, cooling(heating) performance may
	decrease. Clean them frequently.
	• Check if the outdoor unit is covered or installed near the
	obstacle. Take the cover off and take the obstacle away.
	• If you want to operate the air conditioner in the sunlight,
	cover the outdoor unit using curtains or etc.
	• Check if the air conditioner is operating in De-ice mode.
	When the ice formed in winter or the outdoor temperature
	is too low, the air conditioner operates in De-ice mode
	automatically. In De-ice mode, indoor fan stops and cool air
	does not come out.
	• If the doors or windows are open, it may cause bad cooling
	(heating) performance.
	Close the doors and windows.
	• Check if the air conditioner has just been turned on after
	stopping cooling or heating operation. In this case, just a fan
	will run to protect the outdoor unit compressor.
	• Check if the pipe length is too long. When the pipe length
	exceeds maximum allowable pipe length, cooling (heating)
	performance may decrease.

Crystal EU_AR09FSSE@_IB_DB68-03364A_EN.indd 26

2012-11-9 14:28:54

AR09FSSKABEXEU, AR09FSSEDWUNEU, AR12FSSEDWUNEU, AR24FSSEDWUNEU, AR12FSSEDWUXEU specifications

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