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2 resetting the fault display – SMA PVO-N-20 User Manual

Page 47

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SMA Solar Technology AG

10  Troubleshooting

Installation Manual

PVO-BOX-IA-en-10

47

10.2 Resetting the Fault Display

After a reset, the SMA PV Offset Box checks whether there is still any fault present. After a waiting
period, the display is updated. Any faults still present will be re-displayed via red LEDs. The display
of previous faults via yellow LEDs will be deleted.
You can only reset the LED fault display by pressing the reset button. A grid failure or AC-side
disconnection of the SMA PV Offset Box will not influence the LED display.

1. Press the reset button on the bottom of the SMA PV Offset Box.

☑ The fault display is reset.

2. Wait 6 minutes.
3. Read off the LED display again.

☑ The green LED on the SMA PV Offset Box is glowing or flashing. The SMA PV Offset Box is

in operation.

✖ One or more LEDs are glowing red or all LEDs are off.

A fault has occurred.
• Eliminate the fault and reset the fault display.