Troubleshooting
Electrical Control System
180
Inverter compressor drive protection
P4
☆
5
Compressor low pressure protection
P6
☆
7
Outdoor IGBT sensor is faulty
P7
☆
8
O (on) X(off)
☆
(flash at 2Hz)
2.3 Outdoor Unit Malfunctions
For 16K:
Contents
LED1(Green)
LED2(Red)
Normal standby
On
Off
Normal operation
Off
On
DC voltage too high/too low protection or MCE malfunction
On
On
Compressor driven chip EEPROM malfunction
On
Flash
Compressor speed malfunction
Off
Flash
Zero speed protection or synchronous fault protection
Flash
On
IGBT strong current protection or IPM module protection
Flash
Off
Communication error between outdoor main chip and compressor driven chip
Flash
Flash
For 18~60K:
Display
Malfunction or Protection
E1
Communication malfunction between indoor and outdoor units
F0
Overcurrent protection
F1
Ambient temperature sensor (T4) malfunction
F2
Outdoor heat-exchanger temperature sensor (T3) malfunction
F3
Discharge temperature sensor (T5) malfunction
F4
Outdoor EEPROM malfunction
F5
Outdoor fan speed malfunction
P0
IPM module protection
P1
DC voltage too high/too low protection
P3
Ultra-low ambient temperature protection
P4
Compressor rotor position protection
J0
Evaporator high temperature protection
J1
Condenser high temperature protection
J2
High discharge temperature protection
J3
PFC module protection
J4
Communication error between outdoor main chip and compressor driven chip
J5
High pressure protection
J6
Low pressure protection
P7
IGBT sensor malfunction
J8
AC power input voltage protection
In low ambient cooling mode, the LED displays
“
LC
”
or alternates between running frequency and
“LC” (each
appears for 0.5s).
Summary of Contents for Super DC Series
Page 1: ...Contents i Energy Related Products SUPER DC INVERTER SERIES Service Manual 2017...
Page 14: ...Service Space Indoor Units 12 3 Service Space 1000mm 1000mm 1000mm 1000m m Chart 3...
Page 17: ...Air Velocity Distributions Reference Data Indoor Units 15 30 42K Cooling Heating...
Page 18: ...Air Velocity Distributions Reference Data Indoor Units 16 48 55K Cooling Heating...
Page 23: ...Field Wiring Indoor Units 21 10 Field Wiring...
Page 30: ...Wiring Diagrams Indoor Units 28 4 Wiring Diagrams MTBU 12HWFN1 QRD0W MTB 18HWFN1 QRD0...
Page 32: ...Static Pressure Indoor Units 30 5 Static Pressure MTBU 12HWFN1 QRD0W MTB 18HWFN1 QRD0...
Page 33: ...Static Pressure Indoor Units 31 MTB 24HWFN1 QRD0 MTB 30HWFN1 QRD0...
Page 45: ...Features Indoor Units 43...
Page 53: ...Field Wiring Indoor Units 51 9 Field Wiring...
Page 57: ...Service Space Indoor Units 55 3 Service Space...
Page 67: ...Field Wiring Indoor Units 65 10 Field Wiring...
Page 70: ...Features Indoor Units 68...
Page 72: ...Service Space Indoor Units 70 3 Service Space...
Page 73: ...Wiring Diagrams Indoor Units 71 4 Wiring Diagrams MCA3U 12HRFN1 QRD0W MCA3 18HRFN1 QRD0...
Page 77: ...Field Wiring Indoor Units 75 10 Field Wiring MCA3U 12HRFN1 QRD0W MCA3 18HRFN1 QRD0...
Page 81: ...Features Console Type 79 1 7 Active carbon filter is standard...
Page 83: ...Console Type Console Type 81 3 Service Space...
Page 84: ...Console Type Console Type 82 4 Wiring Diagrams MFAU 12HRFN1 QRC8W MFA 16HRFN1 QRC8W...
Page 89: ...Console Type Console Type 87 10 Field Wiring...
Page 93: ...Service Space M Floor standing Type 91 3 Service Space...
Page 95: ...Wiring Diagrams M Floor standing Type 93 MFM 55ARFN1 RRD0...
Page 101: ...Field Wiring M Floor standing Type 99 MFM 55ARFN1 RRD0...
Page 105: ...Service Space GAFloor standing Type 103 3 Service Space...
Page 106: ...Wiring Diagrams GAFloor standing Type 104 4 Wiring Diagrams MFGA 55ARFN1 RRD0 B...
Page 112: ...Field Wiring GAFloor standing Type 110 10 Field Wiring...
Page 115: ...Dimensions Outdoor Units 113 Model KBtu h Unit mm W D H W1 A B 48 55 952 415 1333 1045 634 404...
Page 117: ...Wiring Diagrams Outdoor Units 115 3 Wiring Diagrams MOB30U 12HFN1 QRD0W MOB30U 16HFN1 QRC8W...
Page 118: ...Wiring Diagrams Outdoor Units 116 MOB30U 18HFN1 QRD0 MOCA30U 24HFN1 QRD0 MOD30U 30HFN1 QRD0...
Page 119: ...Wiring Diagrams Outdoor Units 117 MOD30U 36HFN1 QRD0 MOD30U 42HFN1 QRD0...
Page 120: ...Wiring Diagrams Outdoor Units 118 MOD30U 36HFN1 RRD0 MOD30U 42HFN1 RRD0...
Page 121: ...Wiring Diagrams Outdoor Units 119 MOE30U 48HFN1 QRD0 MOE30U 48HFN1 RRD0 MOE30U 55HFN1 RRD0...
Page 154: ...Refrigerantpipe installation Installation 152...
Page 179: ...Troubleshooting Electrical Control System 177 2 1 8 Display board of GA floor standing...