Baxi 800 Fault codes & diagnostics

No fault codes listed yet: we only list codes read from this boiler's own manual.

Combi Natural Gas 25-36 kW 2023-present

Choose your boiler type

The 800 range comes in 3 types

Pick the one you have. The fault codes, GC numbers and manual differ by type.

824 Combi 2 1 codes · 1 GC number 830 Combi 2 1 codes · 1 GC number 836 Combi 2 1 codes · 1 GC number

View the Baxi 800 manual Opens the manufacturer's manual on an external site. We're preparing a hosted copy. Open

No fault codes for this model yet

We haven't got the Baxi 800 manual yet. We don't fill the gap with codes from a similar boiler, because the same code can mean something different on another model. The fault code table in the installation manual is the one to trust.

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