Midea V5 X VRF Series

MCAC-VTSM-2015-10 R410A All DC Inverter V5 X Series 50Hz
Troubleshooting 153
Specific error code for inverter module
L1: low voltage protection
L4: MCE error
L2: high voltage protection
L8: Frequency difference in one
second more than 15Hz
L9: Frequency difference
between the real and setting
frequency more than 15Hz
L0: inverter module protection
L5: Zero speed protection
L7: Phase sequence error
H4
Check module and
compressor
Check power supply
of module
Check power supply
of module
Check module and
electric circuit
Check electric circuit
and compressor
Check module and
wiring connection
Check compressor
Check compressor
Check for inverter module
and ensure DC generatrix
is connected correctly