Gree GMV6 DC Inverter VRF Units Service Manual
144
2.94 "J3" Compressor 3 Over-current Protection
Fault display:
main board of outdoor unit, wired controller of indoor unit and receiver of indoor unit
display
Fault diagnosis:
When the operating current of the compressor detected by the current sensor or circuit exceeds the
limit, the unit will stop working.
Possible causes:
■ The unit's parameters ar
e abnormal;
■ The drive module is abnormal;
■ The compressor is abnormal.
Troubleshooting:
"J3" Compressor 3
Over-current Protection
The compressor is
abnormal
Yes
Yes
Replace the compressor
No
Replace the drive module
If the high pressure value of the unit
is still above 60°C when the compressor runs at the lowest
frequency, the compressor may have enabled normal over-current
protection. In this case, check whether the fan operates properly and
whether the ambient temperature is normal and whether the
power supply is normal (320V-460V)
Power on again
the units based on the capacity
and number of indoor units enabled
previously in the case of
protection state
Whether the drive module is normal?
Yes
Yes
Is the protection still occurring
after power-on?
Yes
Summary of Contents for GMV6 Series
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