Medium
62 on Viessmann Vitodens 050-W B0HA-25

Your boiler has paused to recalibrate how it burns gas, which usually means it is not shedding heat efficiently into the water, and it may need a reset and a check of your heating system.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Automatic calibration of the combustion controller – No: Ensure adequate heat transfer. Reset the appliance.

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 fault requires 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 B0HA-25

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

781314495057585963646768697071727374757778878995104142161163182183184299346347348349350351352353354355357359361364365366367369370371372373374375376377378379380381382383384385386387388393394399400401402403404405406408410416417418425446447448449450451452453454455456457458461462463464467468471474527528540574575576577578579682683684694738766767799979980981982E10E12

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