How much does it cost to fix Worcester Bosch error code ERROR?

Typical repair cost for the Worcester Bosch ERROR fault is £100-200 including labour.

ERROR High

Worcester Bosch ERROR Fault Code

Q: What does the Worcester Bosch ERROR fault code mean?

Your boiler's electronic brain is missing a crucial identification chip that tells it how to operate, so it has safely shut itself down until the part is properly installed.

The Worcester Bosch ERROR fault code means: your boiler's electronic brain is missing a crucial identification chip that tells it how to operate, so it has safely shut itself down until the part is properly installed.. It appears on 1 Worcester Bosch model in our database.

Technical description: IF THIS IS NOT DONE THE APPLIANCE WILL INDICATE ERROR AND WILL NOT FUNCTION. (Related to code plug not being re-fitted to the new control)

Typical repair cost £100-200 (including labour)

Engineer required

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

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Worcester Bosch models that show the ERROR fault code

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

Greenstar i Junior Repair: £100-200

Source

Worcester Bosch ERROR 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