Halstead Eden Fault codes & diagnostics

2 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

CombiSystem Natural Gas 29 kW 2004 onwards Discontinued
Choose your boiler type

The Eden range comes in 4 types

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

CBX 32 2 codes · 2 GC numbers CBX 24 2 codes · 2 GC numbers CBX 38 2 codes · 1 GC number SBX 30 2 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.

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Fault codes

All 2 documented codes

Tap any card for details

0001

Your boiler has detected that it is running too hot and has automatically shut itself down to prevent any damage to the internal components.

High Engineer only £150-300 Shared across the Eden range

Parts commonly replaced

  • NTC temperature sensor
  • Pump
  • Primary heat exchanger
Full explanation for 0001
0011

Your boiler is trying to start up but cannot successfully light the flame after five attempts, so it has locked itself out for safety.

High Engineer only £120-250 Shared across the Eden range

Parts commonly replaced

  • Ignition electrode
  • Gas valve
  • PCB

Related codes

Full explanation for 0011