DM15-01.01.11-01en
Service manual
Multi DC inverter R410A. Outdoor unit
49
11. Troubleshooting
11.1
Indoor unit error code explanation:
OASIS series:
Display
Operation lamp flash times
Timer lamp
Failure
E0
1
X
Indoor EEPROM malfunction
E1
2
X
Indoor / outdoor units communication error
E3
4
X
Indoor fan speed has been out of control
E4
5
X
Open or short circuit of T1 temperature sensor
E5
6
X
Open or short circuit of T2 temperature sensor
F1
2 O
Open or short circuit of T4 temperature sensor
F2 3 O
Open or short circuit of T3 temperature sensor
F3
4
O
Open or short circuit of T5 temperature sensor
F4
5
O
Outdoor EEPROM parameter error
F5
6
O
Outdoor fan speed out of control
F6
7
O
Open or short circuit of T2B temperature sensor
P0 1
☆
IPM module protection
P1 2
☆
Voltage
protection
P4 5
☆
Inverter compressor drive protection
P5 6
☆
Mode
conflict
P6 7
☆
Low pressure protection(Just matching with
M4OA-36HFN1-Q,M4OD-28HFN1-Q,M5OC-36HF
N1-Q,
M5OD-42HFN1-Q)
O
（
light
）
X
（
off
）
☆
（
flash
）
Light Commercial series
NO. MALFUNCTION
RUN
Timer
DEF
Alarm
DISPLAY
DIGITAL TUBE
1
Open or short circuit of T1 temperature sensor
☆
X X X
E0
2
Open or short circuit of T2 temperature sensor
X
X
☆
X
E1
3
Indoor / outdoor units communication error
X
☆
X X
E2
4 Full-water
malfunction
X
X
X
☆
E3
5
Indoor EEPROM malfunction
☆
☆
X X
E4
6
IPM module protection
☆
X X O
E5
7
Open or short circuit of T3 or T4 temperature sensor or
Outdoor EEPROM malfunction
☆
O
X X
E6
8
Outdoor fan speed has been out of control
☆
O
☆
X
E7
9
Indoor fan speed has been out of control
☆
O
O X
F5
10
Voltage protection
☆
O X O
P0
11
Outdoor unit over-current protection
☆
☆
☆
X
P2
12
Inverter compressor drive protection
☆
◎
X
X
P4
13
Mode conflict
☆
X O O
P5
☆
Flash(at 2.5Hz)
◎
Flash(at 0.5Hz) O light X
（
off
）
Note: Digital display is only available for A5 duct type.
