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12
Routine Maintenance
12.1 Overview
For maintenance items beyond this manual, please confirm with SUNGROW or
contact SUNGROW for maintenance, and unauthorized operation is strictly
prohibited.
12.2 Safety Instructions
Due to ambient temperature, humidity, dust, and vibration, the inverter and the internal
components will age and wear. To ensure the system safety and maintain the efficiency of
the inverter, it is necessary to carry out routine and periodic maintenance.
All measures, which can help the inverter work in good conditions, are within the
maintenance scope.
Lethal voltage inside the inverter!
After the inverter stops, wait at least 5 minutes before opening the cabinet door.
Make sure the internal device is completely voltage-free before performing any
work on the inverter.
Only qualified personnel can perform the work described in this chapter.
Do not leave any screws, washers, or other metallic parts inside the inverter to
avoid damages to the inverter.
Sand and moisture penetration may affect the performance of electric devices
inside the inverter!
• Do not perform electrical connection in sandy season or when the ambient
relative humidity is above 95%.
• Perform electrical connection on fine weather days.
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