High
7 on Viessmann Vitodens 050-W B0KA-35

Your boiler is still heating your radiators, but it has stopped making hot water for taps and showers, which usually points to a fault in the part that switches the boiler between heating water for the house and heating water for the tap.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

No DHW heating

From this model's manual
Verified against the Viessmann/Viessmann Vitodens 050 W B0ha B0ka 6194588 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

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All 131 fault codes on the Vitodens 050-W B0KA-35

Seeing a different code? Every code this model can display, in one place.

8131449505758596263646768697071727374757778878995104142161163182183184299346347348349350351352353354355357359361364365366367369370371372373374375376377378379380381382383384385386387388393394399400401402403404405406408410416417418425446447448449450451452453454455456457458461462463464467468471474527528540574575576577578579682683684694738766767799979980981982E10E12

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