The SINVERT units are essentially REFU inverters under the Siemens brand. We repair them with the same experience and the same spare parts.
We take on the well-known grid-tied Siemens series:
If your model is not on the list, give us a call — we have most likely seen it before.
See also: REFUsol


Siemens had acquired REFU Elektronik, and the SINVERT PVM units were built on the same platform as the REFUsol. The faults, the spare parts and the error codes are shared.
This means that, although the manufacturer no longer supports these units, we have both the experience and the parts to repair them.
We have documented 254 Siemens error codes, each with its own page: what it means, what the possible causes are and what you can check before calling us.
All Siemens codes →The manufacturer's manuals for the models we see most often on the bench — for wiring, settings and interpreting the display messages.
The manuals belong to the manufacturer (Siemens) and are provided unaltered, for information.
You send or bring us the inverter. The diagnosis is usually completed within 48 hours and we inform you in detail. The repair starts only after you approve it.
If the repair goes ahead, the diagnosis is free of charge. If the unit cannot be repaired, nothing is charged.
Before it leaves the lab, every inverter is tested under load in simulated operating conditions, and comes with a six-month warranty on the whole unit.
Repair terms in detail
Tell us the model and the error code and we will tell you straight away what is most likely wrong and what happens next.
Ypsilantou 45, Kalochori, Thessaloniki, Greece
Monday – Friday, 09:00 – 17:00