Midea MV6-252WV2GN1 Service Manual page 104

L2: DC bus high voltage protection
L2 protection
The power supply is abnormal
No
The DC bus voltage (P, N)is abnormal
Note:
1. The normal DC voltage between terminals P and N on inverter module should be 450-650V. When the voltage is higher than 700V, L2
protection will be appeared.
Yes
Check the power supply equipment
Yes
1 Replace the inverter module
Figure 6-2.7: Inverter module terminals
V6 VRF 50/60Hz
P
103