Midea MO11MU-09HRDN1, Service Manual, Page: 52 / 60

Oasis Inverter DM12-01.01.10en
52 Service manual
11. Troubleshooting
11.1 Indoor Unit Error Display
Operation lamp Timer lamp Display LED STATUS
☆
1 time X E0
Indoor unit EEPROM parameter error
☆
2 times X E1
Indoor / outdoor units communication error
☆
3 times X E2 Zero-crossing signal error
☆
4 times X E3 Indoor fan speed has been out of control
☆
5 times
X E4 Open circuit or short circuit of indoor room temperature
sensor
☆
6 times
X E5 Open circuit or short circuit of evaporator coil temperature
sensor
☆
7 times
X EC Refrigerant Leakage Detection
☆
2 times
O F1 Open circuit or short circuit of outdoor ambient
temperature sensor
☆
3 times
O F2 Open circuit or short circuit of condenser coil temperature
sensor
☆
4 times
O F3 Open circuit or short circuit of compressor discharge
temperature sensor
☆
5 times
O F4 Outdoor unit EEPROM parameter error
☆ 6 times
O F5 Outdoor fan speed has been out of control
☆ 1 times
☆
P0 IPM malfunction or IGBT over-strong current protection
☆ 2 times
☆
P1 Over voltage or over low voltage protection
☆ 3 times
☆
P2 High temperature protection of compressor top diagnosis
and solution (only for 18k,24k models)
☆
5 times
☆
P4 Inverter compressor drive error
O （ light ） X （ off ） ☆（ flash ）