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Troubleshooting and Maintenance
1.If the alarm occurs accidentally, the inverter can generate power, which may cause the
power grid to cause the inverter to automatically recover, No extra action is needed.
B2-Leakage
2.If the alarm occurs frequently,and is accompanied by an insulation impedance alarm,
current abnormal
check the abnormal alarm of the insulation.
3. If the alarm continues, the equipment cannot generate electricity,please contact the
customer service report repair.
1.If occurs when the light is weak(such as the early morning or evening, and the extreme
weather of rain and dust storms), the component voltage is lower than normal, No extra
B4-PV under
action is needed.
voltage
2.If there is a weak condition of light, please check the group to have a short circuit and
open circuit or not.
B5-PV irradiation
Normal phenomena under light weak conditions .No extra action is needed.
wea
B7-PV string
Check and modify the positive and negative polarity of the input of the circuit string.
reverse
1. If the alarm occurs occasionally, the inverter can be automatically recovered and no
C0-Internal power
action is required.
supply abnormal
2. If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1. If the alarm occurs occasionally, the inverter can be automatically recovered and no
C2-Inverter over
action is required.
dc-bias current
2. If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1. If the alarm occurs occasionally, the inverter can be automatically recovered and no
action is required.
C3-Inverter relay
2.If the alarm occurs repeatedly, the single-phase inverter ,please check whether the live
abnormal
line and zero line of the contact connection is reversed;the three-phase inverter check the
live line to zero line and the voltage of the live line to the ground, if the grid side is
normal, please contact the customer service report repair.
1. If the alarm occurs occasionally, the inverter can be automatically restored, no action
required.
C5-Inverter over
2. If the alarm occurs repeatedly, pls. check the installation site for direct sunlight, good
temperature
ventilation, and high ambient temperature (Such as installed on the parapet). If the
ambient temperature is lower than 45° C and the heat dissipation is good, contact the
customer service center.
1. If the alarm occurs occasionally, it could have been an occasional exception to the
external wiring, the inverter can be automatically
C6-GFCI
recovered, no action required.
abnormal
2. If it occurs repeatedly or cannot be recovered for a long time, pls.contact customer
service to report repair.
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Three phase Grid-tied PV String Inverter User Manual
Three phase Grid-tied PV String Inverter User Manual
C7-System type
If the alarm occurs, the inverter can not work,pls. restart the inverter.If the alarm
error
continues,pls.contact customer service to report repair.
1. If the alarm occurs occasionally, pls. restart the inverter.
C8-Fan abnormal
2. If it occurs repeatedly or cannot be recovered for a long time, check whether the
external fan is blocked by foreign objects. Otherwise, contact customer service.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
C9-Unbalance
action is required.
Dc-link voltage
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CA-Dc-link over
action is required.
voltage
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CB-Internal
action is required.
communication
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
error
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CC-Software
action is required.
incompatibility
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CD-Internal
action is required.
storage error
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CE-Data
action is required.
inconsistency
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CF-Inverter
action is required.
abnormal
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
1、If the alarm occurs occasionally, the inverter can be automatically recovered and no
CG-Boost
action is required.
abnormal
2、If the alarm occurs repeatedly, the inverter cannot work properly. Pls.contact the
customer service center.
Troubleshooting and Maintenance
35
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