Specifications
43
Compressor Stopped Troubleshooting Instructions
Keep the Main Power Supply ON
Open up the Outdoor Unit’s Top Panel or Service Panel
Notice the Yellow LED on the P.C.Board
DO NOT TOUCH ANY OF THE
WIRES INSIDE THE UNIT!
Count the number of blinks
indicated by the LED
1
Blink  Fault Indication  Corrective Action 
1  OutdoorAmbient Sensor Error  Check ambient sensor wire and connection 
2  Outdoor Coil Sensor Error  Check coil sensor wire and connection 
3 
Outdoor Discharge Sensor Error / 
Compressor Overheat Indication 
Check discharge sensor wire and connection / Not 
enough refrigerant / Indoor overload / Outdoor fan not 
functioning 
4  DC Compressor Feedback  Call local dealer 
5  Communication Error  Check Interconnection communication wire 
6  Over Current  Call local dealer 
7  No Load  Check compressor wire and connection 
8  Over / UnderVoltage  Check power supply 
9  DC Compressor Start Failure  Call local dealer 
10 Cooling Overload   Check whether outdoor unit is blocked or not 
11  Defrost  Wait till defrost is over then restart 
12  IPM Protection  Check IPM 
13  EEPROM Read Error  Change EEPROM 
14  EEPROM Write Error  Change EEPROM 
15  DC Fan Motor Feedback Error  Check fan motor wire connection 
16  AC Peak Current Error  Call local dealer 
17  Outdoor Suction Sensor Error  Check suction sensor wire and connection 
19 
DC Compressor Speed Control 
Error 
Call local dealer 
21  Outdoor Suction A Sensor Error  Check A suction sensor wire and connection 
22  Outdoor Suction B Sensor Error  Check B suction sensor wire and connection 
23  Outdoor Suction C Sensor Error  Check C suction sensor wire and connection 
24  Outdoor Suction D Sensor Error  Check D suction sensor wire and connection 
31  Indoor A Communication Error  Check Interconnection communication wire to Indoor A 
32  Indoor B Communication Error  Check Interconnection communication wire to Indoor B 
33  Indoor C Communication Error  Check Interconnection communication wire to Indoor C 
34  Indoor D Communication Error  Check Interconnection communication wire to Indoor D 
*If the problem persist, contact your local dealer straight away
(Applicable to Inverter System Only)










