Troubleshooting
Electrical Control System
178
2.2 Indoor Unit Malfunctions
For the Console
Malfunction
Timer Lamp
Operation Lamp
(flashes)
Indoor EEPROM malfunction
X
1
Communication malfunction between indoor and outdoor units
X
2
Indoor fan speed malfunction
X
4
T1 temperature sensor open or short circuit
X
5
T2 temperature sensor open or short circuit
X
6
Refrigerant leakage
X
7
Overcurrent protection (for some units)
O
1
T4 temperature sensor open or short circuit
O
2
T3 temperature sensor open or short circuit
O
3
T5 temperature sensor open or short circuit
O
4
Outdoor EEPROM malfunction (for some units)
O
5
Outdoor fan speed malfunction
O
6
IPM module malfunction
☆
1
DC voltage too high/too low protection
☆
2
Low ambient temperature protection
☆
4
Inverter compressor drive protection
☆
5
Compressor low pressure protection
☆
7
O (on) X(off)
☆
(flash at 2Hz)
For Other types (12K)
Malfunction
Error Code
Timer Lamp
Operation Lamp
(flashes)
Indoor EEPROM malfunction
E0
X
1
Communication malfunction between indoor and outdoor units
E1
X
2
Indoor fan speed malfunction
E3
X
4
T1 temperature sensor open or short circuit
E4
X
5
T2 temperature sensor open or short circuit
E5
X
6
Refrigerant leakage detection
EC
X
7
Water level alarm
EE
X
8
Communication error between master and slave unit (for twins system)
E8
X
9
Another indoor unit malfunction (for twins system)
E9
X
10
Overcurrent protection (for some units)
F0
O
1
T4 temperature sensor open or short circuit
F1
O
2
T3 temperature sensor open or short circuit
F2
O
3
T5 temperature sensor open or short circuit
F3
O
4
Outdoor EEPROM malfunction (for some units)
F4
O
5
Outdoor fan speed malfunction
F5
O
6
T2B temperature open or short circuit
F6
O
7
Communication malfunction between indoor two chips (For A6 Duct)
FA
O
11
IPM module malfunction
P0
☆
1
DC voltage too high/too low protection
P1
☆
2
Low ambient temperature protection
P3
☆
4
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)
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...