Error Monitor Lamps SANYO Multi System Air Conditioner CLM 1972/2472/3172

Trouble Diagnosis by Error Monitor Lamps Remove the top plate of outdoor unit and the cover of Electrical Component Box. The Power Lamp and Error Monitor Lamps are located on the P.C.Board of Electrical Component Box. (Fig.1) Display of the Error Monitor Lamps If a protective device has activated or there is a sensor failure in the outdoor unit, the 4 error monitor lamps on the outdoor control circuit board will indicate the nature of the trouble. Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = OFF 

ERR 2 = OFF 

ERR 3 = ON 

Error Contents = Sensor for compressor discharge temp 

Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = ON 

ERR 2 = OFF 

ERR 3 = ON Error Contents = Sensor for heat excharge temp 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = OFF 

ERR 2 = OFF 

ERR 3 = OFF 

Error Contents = Sensor for branch pipe A (Narrow tube) 

Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = ON 

ERR 2 = OFF 

ERR 3 = OFF 

Error Contents = Sensor for branch pipe B (Narrow tube) 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = ON 

ERR 2 = OFF 

ERR 3 = OFF 

Error Contents = Sensor for branch pipe C (Narrow tube) 

Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = OFF 

ERR 2 = ON 

ERR 3 = OFF 

Error Contents = Sensor for branch pipe D (Narrow tube) 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = ON 

ERR 2 = OFF 

ERR 3 = ON 

Error Contents = Outdoor temp sensor 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = OFF 

ERR 2 = ON 

ERR 3 = OFF 

Error Contents = Sensor for branch pipe A (Wide tube) 

 Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = ON 

ERR 2 = ON 

ERR 3 = OFF 

Error Contents = Sensor for branch pipe B (Wide tube) 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = ON 

ERR 2 = ON ERR3 = OFF 

Error Contents = Sensor for branch pipe C (Wide tube) 

Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = OFF 

ERR 2 = OFF 

ERR 3 = ON 

Error Contents = Sensor for branch pipe D (Wide tube) 

Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = OFF 

ERR 2 = ON 

ERR 3 = ON 

Error Contents = HIC circuit trouble (current, temp) 

Error Monitor Lamp 

ERR 0 = OFF 

ERR 1 = ON 

ERR 2 = ON 

ERR 3 = ON 

Error Contents = Actuation of comp over load relay 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = OFF 

ERR 2 = ON 

ERR 3 = ON Error Contents = Actuation of freeze protection function 

Error Monitor Lamp 

ERR 0 = ON 

ERR 1 = ON 

ERR 2 = ON 

ERR 3 = ON 

Error Contents = Outdoor unit error. Detail of error message indicate on indoor LED

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