24
OUTDOOR UNIT DIAGNOSTIC GUIDES
Table 16—Diagnostic Guides
OPERATION LAMP
TIMER LAMP
DISPLAY
LED STATUS
☆
1 time
X
E0
Indoor unit EEPROM parameter error
☆
2 times
X
E1
Indoor / outdoor units communication error
☆
3 times
X
E2
Zero-crossing signal detection error
☆
4 times
X
E3
Indoor fan speed has been out of control
☆
5 times
X
E4
Indoor room temperature sensor T1 open circuit or short circuit
☆
6 times
X
E5
Evaporator coil temperature sensor T2 open circuit or short circuit
☆
7 times
X
EC
Refrigerant leakage detection
☆
1 time
O
F0
Overload current protection
☆
2 times
O
F1
Outdoor ambient temperature sensor T4 open circuit or short circuit
☆
3 times
O
F2
Condenser coil temperature sensor T3 open circuit or short circuit
☆
4 times
O
F3
Compressor discharge temperature sensor T5 open circuit or short circuit
☆
5 times
O
F4
Outdoor unit EEPROM parameter error
☆
6 times
O
F5
Outdoor fan speed has been out of control
☆
1 time
☆
P0
IPM malfunction or IGBT over-strong current protection
☆
2 times
☆
P1
Over voltage or over low voltage protection
☆
3 times
☆
P2
High temperature protection of IPM module or compressor top
☆
4 times
☆
P3*
Outdoor ambient temperature too low.
☆
5 times
☆
P4
Inverter compressor drive error
☆
6 times
☆
P5
Indoor units mode conflict (multi-zone ONLY)
O
(
light
)
X
(
off
)
☆(
flash
)
Содержание 38MHRB series
Страница 7: ...7 DIMENSIONS OUTDOOR CONT Unit inch mm Fig 3 Size 24K...
Страница 11: ...11 WIRING DIAGRAMS COOLING ONLY Fig 7 Wiring Diagram Size Cooling Only Size 12K 115V...
Страница 12: ...12 WIRING DIAGRAMS COOLING ONLY CONTINUED Fig 8 Wiring Diagram Cooling Only Size 12K 230V...
Страница 13: ...13 WIRING DIAGRAMS COOLING ONLY CONTINUED Fig 9 Wiring Diagram Cooling Only Sizes 18 24K...
Страница 14: ...14 WIRING DIAGRAMS HEAT PUMP Fig 10 Wiring Diagram Heat Pump Size 12K 115V...
Страница 15: ...15 WIRING DIAGRAMS HEAT PUMP CONTINUED Fig 11 Wiring Diagram Heat Pump Sizes 09 12 18 230V...
Страница 16: ...16 WIRING DIAGRAMS HEAT PUMP CONTINUED Fig 12 Wiring Diagram Heat Pump Size 24 230V...
Страница 37: ...37 DIAGNOSIS AND SOLUTION CONT Fig 36 P U Fig 37 P V...
Страница 38: ...38 DIAGNOSIS AND SOLUTION CONT Fig 38 P W Fig 39 N U...
Страница 39: ...39 DIAGNOSIS AND SOLUTION CONT Fig 40 N V Fig 41 N W...
Страница 50: ...50 DISASSEMBLY INSTRUCTIONS SIZES 12K 115V CONT 5 4 Remove the fan motor screws 4 then remove the motor...