User Manual

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10 Troubleshooting
10.1 Forgotten password, restoring factory defaults
See Restoring factory defaults.
10.2 Firmware upgrade problems
If a problem occurs during firmware upgrade (e.g. a network outage, device powered off during the
upgrade), the device can be forced to start in service mode. To do so, press and hold the button for
output 4 when powering up the device. Hold the button until the device beeps 2 times. Then, open
the device’s IP address in your browser and click the Firmware button in the top menu. Continue by
uploading a firmware file according to the procedure for upgrading the firmware from a file.
10.3 Fuse reset - only NETIO 4 and NETIO 4All
If the NETIO 4 / NETIO 4All device stops working and no LEDs light up, it may be the case that the
maximum rated current was exceeded and the device has shut itself down. To prevent damage to
the device, a resettable safety fuse interrupts the power. The fuse button at the right side of the
device pops out to indicate that. Disconnect all appliances connected to the outputs.
Before switching NETIO 4 / NETIO 4All on again, let it cool down; this may take several minutes. To
power up the device again, press the fuse button. If the button cannot be pressed, let the device
cool down for a while. Before reconnecting appliances, make sure that the excessive current that
has led to the power interruption was not caused by a faulty appliance.