Midea MO11MU-09HRDN1

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）