Midea NEOLA ON-OFF - Diagnosis and Solution Guides

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9. Troubleshooting
9.1 Indoor unit error display
For 7k, 9k, 12k, 18k
Display
Operation lamp flash times
Timer lamp
Failure
E1
1
X
EEPROM error
E2
2
X
Zero crossing detection error
E3 3 X Indoor fan speed has been out of control
E4 4 X Default
E5 5 X
Indoor room temperature sensor T1 open circuit
or short circuit
E6 6 X
Evaporator coil temperature sensor T2 open
circuit or short circuit
EC
2
O
Refrigerant leak detection error
For 21k, 24k
Display
Operation lamp flash times
Timer lamp
Failure
E1
1
X
EEPROM error
E2
2
X
Zero crossing detection error
E3
3
X
Indoor fan speed has been out of control.
E4
4
X
Default
E5
5 X
Indoor room temperature sensor T1 open circuit
or short circuit
E6
6 X
Evaporator coil temperature sensor T2 open
circuit or short circuit
EC
2
O
Refrigerant leak detection error
E9
9
X
Indoor unit and outdoor unit communication error
O（light） X（off） ☆ （flash）