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The warning or error is identified by an event number and the corresponding message.
If possible, please provide us with the 3- or 4-digit event number in all cases.
Most inverter types display a 3- or 4-digit event number.
Exception: All SB3-5000TL-20 inverters as well as the older STP8-17000TL-10 with a firmware version below 2.33.02.R only show the 1- or 2-digit event number on the display. In these devices, the 3- or 4-digit event number can be read out via communication (e.g. in the Sunny Explorer under Spot values / Status / Event number).
If the inverter is fitted with a display, the operating data of the inverter (e.g. current power, daily energy, total energy) as well as events or errors are shown there. Depending on whether the error appears in the utility grid, on the inverter or in the PV array, the error’s event number is shown beneath the relevant symbol on the display.
In the case of some disturbances (such as device disturbances) the inverters automatically restart and show “RESTART IN XXXS” on the display.
The communication product (e.g. Sunny Explorer) displays the warnings and errors that apply to the inverter, the utility grid or the PV array. The warning or error is identified there by an event number and the corresponding message.
Note: Some communication products from third-party suppliers display event numbers that differ from the SMA inverters in the communication device or portal. The OSC diagnoses always refer to the event numbers reported by the SMA inverters. If in doubt, the event number can be read out via the inverter display or SMA communication (e.g. Sunny Explorer).
Further error messages:
Former event numbers can be read out via communication (e.g. Sunny Explorer, Sunny WebBox, Sunny Portal):
If the inverter has been accessed with the Sunny Explorer since commissioning, and the time stamp has thus been set in the background, the former event numbers can be read out from the “Events” tab in the Sunny Explorer.
Additional information about this can be found in the Sunny Explorer user manual. It is available for download at https://www.sma.de/en/service/downloads.html.
In the Sunny Portal, the event numbers and messages are displayed in the system log book.