Midea M2OC1-18HRDN1-Q

8. Troubleshooting
8.1 Indoor unit error code explanation:
Glory series
NO.
MALFUNCTION DEF
TIMER
AUTO
RUN
1 Indoor EEPROM malfunction
O O O O
2 Indoor / outdoor units communication error
★ ★ ★ ★
3
Zero-crossing signal error O O
★
★
4 Indoor fan speed has been out of control
O O
★
★
5
Open circuit or short circuit of outdoor temperature sensor
X O X
★
6
Open circuit or short circuit of T1 or T2 temperature sensor
O O O
★
8 IPM module protection or IGBT over-strong current protection
X X O
★
9
Over voltage or too low voltage protection X O O
★
10
Temperature protection of compressor top O X X
★
11
Inverter compressor drive protection O X
★
★
12
Mode conflict X O
★
★
★Flash(at 0.5Hz, Mode conflict at 0.25Hz) O light X（off）
9V series+VERTU series+9A series+Corona series+ R series+Y series+ X series
Display LED STATUS
E0
Indoor EEPROM malfunction
E1 Indoor/ outdoor units communication error
E2 Zero-crossing signal error
E3 Indoor fan speed has been out of control
E5 Open circuit or short circuit of outdoor temperature sensor
E6 Open circuit or short circuit of T1 or T2 temperature sensor
P0 IPM module protection or IGBT over-strong current protection
P1 Over voltage or too low voltage protection
P2 Temperature protection of compressor top
P4 Inverter compressor drive protection
P5 Mode conflict
NEOLA series +PREMIER series +OASIS series:
Display
Operation lamp flash times
Timer lamp
Failure
E0 1 X Indoor EEPROM malfunction
E1 2 X Indoor / outdoor units communication error
E2 3 X Zero-crossing signal error
E3 4 X Indoor fan speed has been out of control
E4
5 X Open or short circuit of T1 temperature sensor
E5
6 X Open or short circuit of T2 temperature sensor
F1
2 O Open or short circuit of T4 temperature sensor