52 UM0012_ASW 5-10k Series_EN_V03_0522
• Make sure the grounding connection of the
inverter is connected and reliable.
If this fault occurs often, contact the service.
Permanent
Fault
1, 2,3,
4,5,6,
8,9
• Disconnect the inverter from the utility grid and
the PV array and reconnect it after LED turn off. If
this fault is still being displayed, contact the
service.
Contact the service if you meet other problems not in the table.
12 Maintenance
Normally, the inverter needs no maintenance or calibration. Regularly inspect
the inverter and the cables for visible damage. Disconnect the inverter from all
power sources before cleaning. Clean the enclosure with a soft cloth. Ensure
the heat sink at the rear of the inverter is not covered.
12.1 Cleaning the contacts of the DC switch
Clean the contacts of the DC switch annually. Perform cleaning by cycling the
switch to on and off positions 5 times. The DC switch is located at the lower
left of the enclosure.
12.2 Cleaning the heat sink
Risk of injury due to hot heat sink
• The heat sink may exceed 70
℃
during operation. Do not touch the heat
sink during operation.
• Wait approx. 30 minutes before cleaning until the heat sink has cooled
down.
• Ground yourself before touching any component.