Thermador DESCALE error code

A descale reminder, or a scale-affected valve — run the descale cycle; if it remains, we service the affected valve.

Because a code points to a likely area rather than an exact part, we run a full on-site diagnosis to confirm the real cause — testing the components above and the wiring and controls behind them. You get a clear, flat-rate quote before any work begins, and most DESCALE faults are resolved on the first visit with quality parts and a parts-and-labor warranty.