101
DC Inverter Multi
VRF Service Manual
2.4 Compressor overcurrent protection
NO
YES
YES
YES
YES
NO
NO
NO
Abnormal overcurrent error
If the
compressor wiring
is correct
Adjust the compressor wiring
If the
current value is higher than
the preset value of
protector
Replace the overcurrent protector
If the
high voltage of unit
is normal
Refer to high voltage protection
If the voltage is normal
Contact the power supply company
The communication resumes
to normal
Upon AC inverter startup overcurrent, the indicator will display the current protection.
Yes
Yes
Yes
No
No
Current protection
Is voltage of power
supply normal˛
Disconnect compressor
wire Restart the unit
Is there overcurrent
protection˛
Replace compressor
Note˖DC inverter unit can not be tested by
disconnecting the compressor wire
Replace the damaged module
Adjust parameter of power supply