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Table 5-3 (14/16KW)
No.
1
Communication error between IDU and ODU
2
T3 or T4 temperature sensor error
3
Input voltage protection
4
DC fan protection
5
EEPROM fault
6
Wrong compressor parameters
7
E6 fault occurs more than six times in an hour.
8
PFC error
9
Refrigerant radiator temperature sensor error
10
DC bus voltage protection
11
Communication between the main control board and the inverter fails.
12
M-Home mismatch (reserved)
13
L (L0/L1) fault occurs three times in one hour.
14
The fault is increased or reduced on the IDU.
15
IPM protection
16
DC bus low voltage protection
17
DC bus high voltage protection
18
MCE error
19
Zero speed protection
20
Compressor phase sequence error
21
Protection for compressor speed change > 15Hz
Protection for the difference between the set speed and the running speed
22
of the compressor > 15Hz
23
Radiator surface temperature protection
24
System high pressure protection
25
System low pressure protection
26
Overcurrent protection
27
T5 discharge temperature protection
28
T3 outdoor condenser temperature protection
29
Typhoon protection
30
T2 IDU evaporator temperature protection
Ambient temperature less than or equal to -5°C in cooling mode (ODU
31
reports the fault)
If the problem remains, please contact the distributor or Midea's air conditioner customer service center, and provide info about the
product model and the fault details.
Display Function Instruction:
1. When stand by, LED displaying the amount of indoor units online which communicate with outdoor units.
2. When operation, LED displaying frequency value of compressor.
3. When defrost, LED displaying "dF".
Fault or protection type
Recovery mode
Recoverable
Recoverable
Recoverable
Recoverable
Unrecoverable
Unrecoverable
Unrecoverable
Unrecoverable
Recoverable
Recoverable
Recoverable
Recoverable
Unrecoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
6
Error code
E2
E4
E5
E6
E9
E.9.
Eb
EF
EH
F1
H0
HF
H4
H7
L0
L1
L2
L4
L5
L7
L8
L9
PL
P1
P2
P3
P4
P5
P8
PE
EP
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