229 / EA High

Worcester Bosch 229 / EA Fault Code

Also written as 229EA — same fault.

The Worcester Bosch 229 / EA fault code means: your boiler has stopped because it cannot detect that the flame is lit, meaning it has safely shut down to prevent gas from building up.. It appears on 1 Worcester Bosch model in our database.

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.

Technical description: Loss of ionisation signal during operation
Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Worcester Bosch models that show the 229 / EA fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Worcester Bosch 229 / EA fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026