Gree GMV6 DC Inverter VRF Units Service Manual
2.96 "J5" Compressor 5 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:
"J5" Compressor 5
Over-current Protection
The compressor is
abnormal
Yes
Yes
Replace the compressor
No
Replace the d rive modu le
If the h igh pressu re value of the u nit
is still above 60°C when the compressor runs at the lowest
frequen cy, the compressor may ha ve ena bled normal over-current
protection. In this case, check whether th e fan operates properly and
whether the a mbient temperature is normal and whether the
power supply is normal (320V-460V)
Power on aga in
the units based on the capa city
and number o f indoo r u nits enable d
previou sly in the case of
protection state
Whether the d rive modu le i s normal?
Yes
Yes
Is th e p rotection still occurring
after power-on?
Yes
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