Midea MS11M-18HRN1 - Troubleshooting Guide; Indoor Unit Error Codes

Oasis On-off DM12-01.01.09en
50 Service manual
11. Troubleshooting
11.1 Indoor Unit Error Display
Operation lamp Timer lamp Display LED STATUS
☆ 1 time
X E1
EEPROM parameter error
☆ 2 times
X E2 Zero-crossing signal error
☆ 3 times
X E3 Indoor fan speed has been out of control
☆ 5 times
X E5 Open circuit or short circuit of indoor room temperature
sensor
☆ 6 times
X E6 Open circuit or short circuit of evaporator coil temperature
sensor
☆ 7 times
X E7 Open circuit or short circuit of condenser coil temperature
sensor
☆ 2 times
O EC Refrigerant Leakage Detection
☆ 9 times
X E9 Indoor / outdoor units communication error
O（light） X（off） ☆（flash）