Gree GMV-VQ680WM/C-X Service Manual page 174

Gree
2.110 "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:
runs at the lowest fre quency, the compre ssor may ha ve ena bled
normal over-current protection. In this case, check whether th e fan
ope rate s prop erly an d whe ther the ambient temper atu re i s normal
"J2" Compressor 2
Over-current Protection
Power on aga in the units
based on the cap aci ty a nd number of
indo or units enab led previously in the
case of protection state
Yes
If th e h igh pressu re valu e o f
the unit is still above 60°C when the compre ssor
and whether the power sup ply is n ormal
(320V-460V)
Yes
Whether th e d rive modu le i s normal?
Yes
Is th e p rotection still occurring
afte r po we r-on?
Yes
The co mpr essor is
abn ormal
GMV6 HR DC Inverter VRF Units Service Manual
No
Yes
Replace th e compre ssor
172
Replace th e d rive modu le