Baxi 600 Combi (range) Fault codes & diagnostics

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

Combi Natural Gas 24-36 kW 2015 onwards Discontinued

Choose your boiler type

The 600 range comes in 3 types

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

624 Combi 19 codes · 2 GC numbers 630 Combi 17 codes · 2 GC numbers 636 COMBI 17 codes · 2 GC numbers

Each model has its own manual A family spans several manuals, one per model or generation. Pick your model above and its page has the manual its fault codes were read from.

No fault codes for this model yet

We haven't got the Baxi 600 Combi (range) 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.