121
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)