10 Troubleshooting
38 /41
Insert the fan connector and the internal cable connector in position (note the correspondence), and secure the fan
connector by cable ties.
M4
PH2
1.5
N.m
Fan No.
Cable No.
11
12
13
14
15
11
12
13
14
15
FIG 8-8 Secure the fan connector
10 Troubleshooting
When the inverter does not operate normally, we recommend the following actions for quick troubleshooting. Please
review the error list table carefully.
10.1 Warning
The different LED colors and flashing status identify the current operation statuses of the inverter. If the red color is
always on, it indicates the inverter fault. Usually the warnings can be cleared through an orderly shutdown / reset or a
self-corrective action performed by the inverter.
10.2 Errors
Error codes identify a possible equipment fault, or incorrect setting/ configuration. Any and all attempts to correct or
clear a fault must be performed by qualified personnel. Typically, the Errors code can be cleared once the cause or
fault is removed.
However, some of the (E) codes may cannot be cleared, in this case please contact the dealer or CSI Solar Co., Ltd. to
replace a new one.
Errors as indicated in the table below:
Description
Trouble shooting
External Fan Warning
1. Check whether the fans operate normally and are blocked by sundries. If they are
blocked, clear the sundries.
2. If a fan does not operate normally, stop and disconnect the inverter to replace the
fan.
Grid Line Vol Overvol
t Err
Generally, the inverter will be reconnected to the grid after the grid returns to normal.
If the fault occurs repeatedly:
1. Measure the actual grid voltage, and contact the local electric power company for
solutions if the grid voltage is higher than the set value.
2. Check whether the protection parameters are appropriately set via the App.
3. Check whether the cross-sectional area of the AC cable meets the requirement.
4. If the fault is not caused by the foregoing reasons and still exists, contact CSI Solar.
Grid Phase Vol Overv
olt Err
Grid Freq High Err
Generally, the inverter will be reconnected to the grid after the grid returns to normal.
If the fault occurs repeatedly:
1. Measure the actual grid frequency, and contact the local electric power company for
