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Dc Inverter VRF plus Water Heater Solution Service Manual SERVICING
230
2.4 Compressor overcurrent protection
Upon AC inverter startup overcurrent, the indicator will display the current protection.
No
Yes
Abnormal overcurrent error
If the compressor
wiring is correct
Adjust the compressor wiring
Replace the overcurrent protector
Refer to high voltage protection
Contact the power supply company
If the current value is
higher than the preset
value of protector
If the high voltage
of unit is normal
If the voltage is
normal
The communication resumes to normal
Yes
Yes
Yes
No
No
No
Current protection
If the voltage is
normal
Adjust the power parameters
Remove the
compressor cables
and restart
If overcurrent
protection
Replace the compressor
Module damaged. Replace
the module
Note: For DC VRF unit, it is not allowed to test
with compressor cable removed.
Yes
No
No
Yes
Yes
Yes
Yes