Fault Codes / Wolf / 712
CHA / BWL — DHW sensor (S-TBW) — storage tank sensor open or short circuit.
Wolf 712: DHW sensor (S-TBW) — storage tank sensor open or short circuit. This fault usually isn't an immediate stop, but should be checked soon.
Source: Wolf Fehlercode-Liste (offizielle Wolf-Dokumentation), Abschnitt "Fehlercodes der Wärmepumpen BWL" (emax-haustechnik.de Spiegel)
Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.
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