10 Daily Maintenance
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10 Daily Maintenance
DANGER
Risk of inverter damage or personal injury due to incorrect service!
Always keep in mind that the inverter is powered by dual sources: PV array and utility grid.
Before any service work, observe the following procedure.
1) Disconnect the inverter from the utility grid side first and then PV array;
2) Wait at least 5 minutes after shut down the inverter, for inner capacitors to discharge
completely;
3) Verify that no voltage and current existing with appropriate testing devices.
CAUTION
Keep non-related persons away!
A temporary warning sign or barrier must be posted to keep non-related persons away while
performing electrical connection and service work.
NOTICE
Risk of inverter damage if it is improperly serviced.
Use accessories and spare parts approved by the inverter manufacturer only. Never modify the
inverter or other components of the inverter. The loss of any or all warranty rights may follow if
otherwise.
NOTICE
Any malfunction that may impair the inverter safety operation must be repaired immediately
before the inverter is restarted.
Inverter contains no customer serviceable parts inside. Please contact local authorized personnel if
any service work is required.
NOTICE
On-site maintenance is not allowed.
Never open the cover of the inverter, and never arbitrarily replace any internal components.
For any maintenance need, please contact Customer service. Otherwise, Canadian Solar shall not
be held liable for any damage caused.
Information
Servicing of the device in accordance with the manual should never be undertaken in the absence
of proper tools, test equipment or the more recent revision of the manual with has been clearly
and thoroughly understood.
Items
Methods
Period
System
clean
Check the temperature and dust of the inverter. Clean the inverter enclosure.
Check the humidity and dust of the environment.
Meanwhile check whether the filter function of the air inlet is ok.
Six months to a year
(it depends on the
dust contents in air.)
11 Troubleshooting
When the inverter does not operate normally, we recommend the following actions for quick troubleshooting. Please
review the error list table carefully.
11.1 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.
11.2 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. In the event of an earth fault, there will be a buzzer sound and a red light.
Errors as indicated in the table below:
