Fault Codes / Wolf / 739

CHA / BWL — CAN error: heat pump missing (S-CAN1).

Possible causes

• CAN bus wiring to the heat pump broken or module not detected.

Check steps

• Check CAN bus wiring and addressing.

Affected parts

• CAN-Bus-Kabel

Safety note

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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