Midea ATOM MDV-V60WDHN1(AtB) - Troubleshooting

Atom B Series VRF 50/60Hz
46
Midea
Atom B
Series
Service Manual
1 Error Code Table
Table 6-1.1: Error code table
Error code
Content
Note
C0
Communication fault between main control board and communicate converter board
28-56 models
H0
Communication fault between main control board and communicate converter board
60 model
E2
Communication fault between outdoor unit and indoor units
All models
E4
Outdoor heat exchanger temperature sensor(T3) or outdoor ambient temperature
sensor(T4) error
All models
E5
Input voltage protection
All models
E6
DC fan protection
All models
E9
EEPROM Error
All models
E.9.
Compressor parameters mismatch
All models
Eb
E6 fault occurs more than six times in an hour.
All models
EF
PFC fault
All models
EH
Refrigerant radiator temperature sensor fault
All models
EP
Cooling ambient temperature lower than -15℃
All models
F1
DC bus voltage protection
All models
H4
L (L0/L1) fault occurs three times in one hour.
All models
H7
The number of online indoor units have decreased/increased
All models
HF
Indoor unit and outdoor unit program mismatch
All models
L0
IPM module protection
All models
L1
DC bus low voltage protection
All models
L2
DC bus high voltage protection
All models
L3
Other drive errors
All models
L4
MCE malfunction
All models
L5
Zero speed protection
All models
L7
Phase sequence error
All models
L8
Protection for compressor speed change > 15Hz
All models
L9
Protection for the difference between the setting speed and the running speed of the
compressor > 15Hz
All models
PL
Radiator surface temperature protection
All models
P1
System high pressure protection
All models
P2
System low pressure protection
All models
P3
Overcurrent protection
All models
P4
Discharge temperature T5 protection
All models
P5
Outdoor condenser temperature T3 protection
All models
P8
Typhoon protection
All models
P9
Poor reversing of four-way valve
All models
PE
IDU evaporator temperature T2 protection
All models