Samsung AS180UE Service Manual

Also see for AS-2408BR: Service manual Service manual

Contents

1) The input voltage should be 198-264VAC.The air conditioner may not operate properly if the voltage is out of this range.2) The indoor unit and the outdoor unit shall be linked by 4 cables.Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.Otherwise the air conditioner may not operate properly.3) If a problem occurs as described in the table below, it is a symptom not related to the malfunction of the airconditioner.4) Indoor unit observes operation condition of the air conditioner, and displays self diagnosis detailson the display panel.Samsung Electronics 5-15. Troubleshooting5-1 Items to be checked firstNO123456Operation of air conditionerThe operation indication LED (Green) blinks when apower plug of the indoor unit is plugged in for thefirst time.• In a COOL operation mode, the compressor does notoperate at a room temperature than the settingtemperature that the compressor should operate.Fan speed setting is not allowed in AUTO or DRYmode.Compressor stops operation intermittently in DRYmode.Timer LED only of the indoor unit lights up and theair conditioner does not operate.The compressor stops intermittently in a COOLmode or DRY mode, and fan speed of the indoor unitdecreases.It indicates power is on. The LED stops blinking if the operationON/OFF button on the remote control unit is pushed.• In happens after a delay of 3 minutes when the compressor isreoperated. The same phenomenon occurs when a power is on.• As a phenomenon that the compressor is reoperated after adelay of 3 minutes, the indoor fan is adjusted automaticallywith reference to a temperature of the air blew• The speed of the indoor is changed automatically in DRY mode.• Fan speed is 4 steps is selected automatically in AUTO mode.Compressor operation is controlled automatically in DRY modedepending on the room temperature.Timer is being activated and the unit is in ready mode.The unit operates normally if the timer operation is cancelled.The compressor stops intermittently or the fan speed of theindoor unit decreases to prevent inside/outside air frozendepending on the inside/outside air temperature.ExplanationNO Display1 OPERATING LED (GREEN) blinking (1Hz)2 TIMER LED (YELLOW) blinking (5Hz)3 OPERATING (GREEN), TIMER LED (YELLOW) blinking (5Hz)4 FAN (GREEN) LED blinking (5Hz)Restore from power failure (input initial power)Temperature sensor defective (open, short)Indoor heat exchanger sensor defective (open, short)Indoor fan malfunction (inoperative within 15 sec- less than600rpm)Self Diagnosis