Midea Super DC Series

Troubleshooting
Electrical Control System 179
For Floor Standing:
Malfunction
Error Code
Indoor EEPROM malfunction
E0
Communication malfunction between indoor and outdoor units
E1
Indoor fan speed malfunction
E3
T1 temperature sensor open or short circuit
E4
T2 temperature sensor open or short circuit
E5
Refrigerant leakage detection
EC
Outdoor unit is faulty (for old communication protocol)
Ed
Overcurrent protection (for some units)
F0
T4 temperature sensor open or short circuit
F1
T3 temperature sensor open or short circuit
F2
T5 temperature sensor open or short circuit
F3
Outdoor EEPROM malfunction (for some units)
F4
Outdoor fan speed malfunction
F5
T2B temperature open or short circuit
F6
IPM module malfunction
P0
DC voltage too high/too low protection
P1
Top of compressor high temperature protection
P2
Low ambient temperature protection
P3
Inverter compressor drive protection
P4
Outdoor IGBT sensor is faulty
P7
For Other Types (18K-60K):
Malfunction
Error Code
Timer Lamp
Operation Lamp
(flashes)
Indoor EEPROM malfunction
E0
X
1
Communication malfunction between indoor and outdoor units
E1
X
2
Indoor fan speed malfunction
E3
X
4
T1 temperature sensor open or short circuit
E4
X
5
T2 temperature sensor open or short circuit
E5
X
6
Refrigerant leakage detection
EC
X
7
Water level alarm malfunction
EE
X
8
Communication error between master and slave unit (for twins system)
E8
X
9
Another indoor unit malfunction (for twins system)
E9
X
10
Outdoor unit is faulty (for old communication protocol)
Ed
X
11
Overcurrent protection (for some units)
F0
O
1
T4 temperature sensor open or short circuit
F1
O
2
T3 temperature sensor open or short circuit
F2
O
3
T5 temperature sensor open or short circuit
F3
O
4
Outdoor EEPROM malfunction (for some units)
F4
O
5
Outdoor fan speed malfunction
F5
O
6
T2B temperature open or short circuit (for free-match indoor units)
F6
O
7
Communication error between auto-lifting panel and slim cassette
F7
O
8
Auto-lifting panel is faulty (for slim cassettes with an auto-lifting panel)
F8
O
9
Auto-lifting panel is not closed (for slim cassettes with an auto-lifting
panel)
F9
O
10
IPM module malfunction
P0
☆
1
DC voltage too high/too low protection
P1
☆
2
Top of compressor high temperature protection
P2
☆
3
Low ambient temperature protection
P3
☆
4