45
9. Troubleshooting
9.1 Indoor Unit Error Display
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
☆
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
☆
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 times
☆
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 compressor top diagnosis
and solution(only for 9k,12k models)
☆
5 times
☆
P4
Inverter compressor drive error
O
(
light
)
X
(
off
)
☆(
flash
)
Summary of Contents for 38HVM109303P
Page 13: ...13 5 2 Outdoor Unit MOC 09HFN1 MW0W MOC 12HFN1 MV0W MOF 18HFN1 MU0W...
Page 14: ...14 MOG 24HFN1 MT0W...
Page 29: ...29 If T4 5 or the compressor starts running the preheating function will stop...
Page 47: ...47 9 2 2 Indoor outdoor units communication error diagnosis and solution E1...
Page 48: ...48 9 2 3 Fan speed has been out of control diagnosis and solution E3 E7...
Page 50: ...50 9 2 4 Open circuit or short circuit of temperature sensors diagnosis and solution E5 E6...
Page 51: ...51 9 2 5 IPM malfunction or IGBT over strong current protection diagnosis and solution P0...
Page 52: ...52 9 2 6 Over voltage or over low voltage protection diagnosis and solution P1...
Page 54: ...54 9 2 9 Inverter compressor drive error diagnosis and solution P4...