Samsung AG N4DKH User Manual

Also see for AG N1DEH Series: Installation manual

Cleaning and Maintenance27EnglishCleaning and MaintenanceTroubleshootingRefer to the following chart if the fan coil unit operates abnormally. This may save time andunnecessary expense.Problem SolutionThe fan coil unit doesnot operate at all.• Check whether the power is turned on, and then operate the airconditioner again.• Check whether the auxiliary power switch (MCCB, ELB) is turnedon. If the auxiliary power switch (MCCB, ELB) is turned off, thefan coil unit does not work although you press the (Power)button.• If the fan coil unit is turned off by the Timed off function, turn onthe fan coil unit again by pressing the (Power) button.The temperature doesnot change.• Check whether the Fan mode is running. In the Fan mode, the fancoil unit controls the set temperature automatically, and you cannotchange the set temperature.The air is not cool orwarm enough.• In the Cool mode, cool air does not come out if the set temperature ishigher than the current temperature.– AR-EH0**, AR-EC0** remote control: Press the Temperaturebutton repeatedly until the set temperature (minimum: 18°C) is setto lower than the current temperature.– AR-KH0** remote control: Press the Temperature button on theremote control. Then rotate the Wheel until the set temperature(minimum: 18°C) is set to lower than the current temperature.• In the Heat mode, warm air does not come out if the set temperatureis lower than the current temperature.(only for the models for both heating and cooling)– AR-EH0**, AR-EC0** remote control: Press the Temperaturebutton repeatedly until the set temperature (maximum: 30°C) isset to higher than the current temperature.– AR-KH0** remote control: Press the Temperature button on theremote control. Then rotate the Wheel until the set temperature(maximum: 30°C) is set to higher than the current temperature.• Check whether the air filter is blocked with dirt. A dusty filter maydecrease the cooling and heating efficiencies. Clean the air filterfrequently.• If the fan coil unit is installed in a place exposed to direct sunlight, pullthe curtains on the windows.• Close the windows and doors to maximize the cooling and heatingefficiencies.