Daikin FRWKL50UV163 Operation Manual

TroubleshootingTroubleshootingFault diagnosis by remote controllerThe remote controller can receive relevant error codes from the indoor unit.1. When [CANCEL) is held down for about 5 seconds," DD" blinks in thetemperature display section (with small beep).2. Press [CANCEL) repeatedly until a long beep is produced.• The code indication changes as shown below, and notifies with a long beep.CODE MEANING00 NORMALuo REFRIGERANT SHORTAGESYSTEM DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGEU2mU4 FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)A1 INDOOR PCB DEFECTIVENESSA5 FREEZE-UP PROTECTORINDOOR A6 FAN MOTOR FAULTUNIT C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSORC9 FAULTY SUCTION AIR TEMPERATURE SENSORE1 CIRCUIT BOARD FAULTE5 OL STARTEDE7 DC FAN MOTOR FAULTEB OVERCURRENT INPUTF3 HIGH TEMPERATURE DISCHARGE PIPE CONTROLF6 HIGH PRESSURE CONTROL (IN COOLING)OUTDOOR HO SENSOR FAULTUNIT H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSORH9 FAULTY SUCTION AIR TEMPERATURE SENSORJ3 FAULTY DISCHARGE PIPE TEMPERATURE SENSORJ6 FAULTY HEAT EXCHANGER TEMPERATURE SENSORL4 HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINKL5 OUTPUT OVERCURRENTP4 FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSORNOTE• When "00" is removed from remote and "00" is present at unit display, then it can be removed bypressing temperature up and down button from remote.• A short beep indicates non-corresponding codes.• To cancel the code display, hold down (CANCEL) for about 5 seconds (for remote display)_The code display also c ancels itself if the button is not pressed for 1 minute (For unit and remote display)_18DAIKIN INDUSTRIES, LTD.Head office:Osaka Umeda Twin Towers South1-13-1, Umeda, Kita-ku, Osaka, 530-0001, JapanTokyo office:Yaesu Central Tower, Tokyo Midtown Yaesu,2-2-1, Yaesu, Chuo-ku, Tokyo, 104-0028, Japanhttp://www.daikin.com