SMA SUNNY WEBBOX Bluetooth Wireless Technology Installation Manual page 56

Failure Search
No. Problem
7 The firmware update
for connected
devices failed.
8 The "SD CARD" LED
glows red.
56 SWebBox20-eng-IUS111411
Cause
There is no internet
connection.
The SD card was removed
during the update process.
The update file was not sent
to the devices in the PV plant
after 5 attempts.
The SD card is full.
The SD card is write-
protected.
Rectification
• Reestablish Internet access. If
necessary, contact your Internet
service provider.
☑ If you have set automatic device
update, the automatic device update
starts again the following day.
• To start updating the devices
directly, run a manual device update
(see "Performing a Manual Device
Update" (page 44)).
• Insert the SD card into the Sunny
WebBox SD card slot again and
perform a manual device update
(see "Performing a manual device
update via SD card" (page 46)).
• Check the status of the Bluetooth
connection for the devices in your PV
plant Please note that the Bluetooth
connection can also be interrupted
by the absence of DC input voltage
of the inverter. The DC input voltage
can vary depending on the time of
day, weather or the condition of PV
modules (e.g. covered with snow or
leaves).
– If necessary, improve the quality
of the connection.
– To start the device update
directly, update the device
manually (see "Performing a
Manual Device Update"
(page 44) or "Performing a
manual device update via SD
card" (page 46)).
• Replace the SD card or format the
SD card in FAT 32 format.
• Remove the write protection of the
SD card.
SMA America, LLC
Installation Guide