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Table 5-2 (10/12KW)
No.
Communication fault between main control board and communication
1
terminals block
2
IDU communication error
3
T3 or T4 temperature sensor error
4
Input voltage protection
5
DC fan protection
6
EEPROM error
7
Wrong compressor parameters
8
E6 fault occurs more than six times in an hour.
9
PFC fault
10
Refrigerant radiator temperature sensor error
11
Cooling ambient temperature lower than -5°C
12
DC bus voltage protection
13
Communication between the main control board and the inverter fails.
14
M-Home mismatch(reserved)
15
L (L0/L1) fault occurs three times in one hour.
16
The fault is increased or reduced on the IDU.
17
IPM protection
18
DC bus low voltage protection
19
DC bus high voltage protection
20
MCE error
21
Zero speed protection
22
Compressor phase sequence error
23
Protection for compressor speed change > 15Hz
Protection for the difference between the set speed and the running speed
24
of the compressor > 15Hz
25
Radiator surface temperature protection
26
System high pressure protection
27
System low pressure protection
28
Overcurrent protection
29
Discharge temperature T5 protection
30
Outdoor condenser temperature T3 protection
31
Typhoon protection
32
IDU evaporator temperature T2 protection
Fault or protection type
5
Recovery mode
Error code
Recoverable
C0
Recoverable
E2
Recoverable
E4
Recoverable
E5
Recoverable
E6
Unrecoverable
E9
Unrecoverable
E.9.
Unrecoverable
Eb
Unrecoverable
EF
Recoverable
EH
Recoverable
EP
Recoverable
F1
Recoverable
H0
Recoverable
HF
Unrecoverable
H4
Recoverable
H7
Recoverable
L0
Recoverable
L1
Recoverable
L2
Recoverable
L4
Recoverable
L5
Recoverable
L7
Recoverable
L8
Recoverable
L9
Recoverable
PL
Recoverable
P1
Recoverable
P2
Recoverable
P3
Recoverable
P4
Recoverable
P5
Recoverable
P8
Recoverable
PE
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