Gree GMV6 DC Inverter VRF Units Service Manual
143
2.93 "J2" Compressor 2 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 are abnormal;
■ The drive module is abnormal;
■ The compressor is abnormal.
Troubleshooting:
"J2" Compressor 2
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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