Midea MDV-V160W/DRN1

MCAC-VTSM-2016-10 R410A All DC Inverter Mini VRF
Troubleshooting 91
Condition 4: L0 error appears after the compressor running a period time (running frequency is over
60Hz).
L0
Excess refrigerant
1
Yes
Discharge part of the refrigerant. Add
oil if it leaks during discharge
No
Inverter module is too hot
Yes
Fasten the fixing screws for the
inverter module and recoat heat
dissipation materials
No
Inverter module is over-current
2
Yes
Replace the compressor
No
Replace the inverter module
Notes:
1. Excess refrigerant causes discharge temperature to be lower than normal, discharge pressure to be higher than normal and suction
pressure to be higher than normal.
2. Use clip-on ammeter to measure the compressor current, if the current is normal indicates the inverter module is failed, if the current is
abnormal indicates the compressor is failed.