Midea MIV V4+ Mini Service Manual page 38

MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
5) E5 malfunction
Outdoor unit voltage protection
Check the voltage of outdoor unit power supply, whether the
voltage between L1 and N is about 198--252V
Replace the filter board, then check whether the system can
run normally
Replace outdoor main board
36
LED indicates E5
Yes
No
No
Check the power supply
Yes
Trouble is solved
DM12-01.01.05en
Outdoor units