Midea M2OC-14HRDN1 Technical & Service Manual page 25

Outdoor unit error code explanation:
8.2
For units(except M5OA-36HRDN1-Q model)
Display
E0
E1
E2
E3
E6
E4
E5
E7
P0
P1
P2
P3
P4
P6
EEPROM error
No A Indoor unit coil outlet temp. sensor or connector of sensor is defective
No B Indoor unit coil outlet temp. sensor or connector of sensor is defective
No C Indoor unit coil outlet temp. sensor or connector of sensor is defective
No D Indoor unit coil outlet temp. sensor or connector of sensor is defective
Outdoor unit temp. sensor or connector of temp. sensor is defective
Compressor voltage protection
Communication malfunction between outdoor main chip and compressor control chip
Temperature protection of compressor discharge or compressor top.
M4OC-36HRDN1-Q
For
High pressure protection(only for M4OC1-27HRDN1-Q,
Low pressure protection(only for M4OC1-27HRDN1-Q,
Compressor current protection
Inverter module protection
Condenser high-temperature protection
LED STATUS
,it only means compressor discharge temp.protection.
M4OC-36HRDN1-Q
)
M4OC-36HRDN1-Q
)
ODMI-1103-A