Midea MCA3U-12FNXD0

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Troubleshooting
Error Codes
1
Indoor EEPROM (Electrically Erasable
Programmable Read-Only Memory) error
1 O
E0
2 Indoor and outdoor unit communication malfunction 2 O
E 1
3 Indoor fan speed malfunction 4 O
E3
4 Indoor room temperature sensor error 5 O
E4
5 Evaporator coil temperature sensor error 6 O
E5
6 Refrigerant leak detection system malfunction 7 O
EC
7 Water level alarm malfunction 8 O
EE
8
Dual indoor unit (twin model only)
communication malfunction
9 O
E8
9 Other twin model malfunction 10 O
E9
10 Overload protection 1 On
F0
11 Outdoor temperature sensor error 2 On
F 1
12 Outdoor condenser pipe sensor error 3 On
F2
13 Discharge air temperature sensor error 4 On
F3
14
Outdoor EEPROM (Electrically Erasable
Programmable Read-Only Memory) error
5 On
F4
15 Outdoor fan speed (DC fan motor only) malfunction 6 On
F5
16
17
18
19
20
Inverter module IPM protection 1
Flash
P0
21
High/Low voltage protection 2
Flash
P 1
22
Compressor top overheating protection 3
Flash
P2
Outdoor low temperature protection 4
Flash
P3
Compressor drive error 5
Flash
P4
Mode conflict 6
Flash
P5
23
Compressor low-pressure protection 7
Flash
P6
Outdoor IGBT sensor error 8
Flash
P7