How much does it cost to fix Worcester Bosch error code 80?

Typical repair cost for the Worcester Bosch 80 fault is £150-300 including labour.

80 High

Worcester Bosch 80 Fault Code

Q: What does the Worcester Bosch 80 fault code mean?

Your boiler has detected an issue with the heat output settings or the fuel supply, which is preventing it from operating correctly.

The Worcester Bosch 80 fault code means: your boiler has detected an issue with the heat output settings or the fuel supply, which is preventing it from operating correctly.. It appears on 1 Worcester Bosch model in our database.

Technical description: Heat output 24.2 kW / Heat input 24.4 kW (RD532i L.P.G) or Heat output 29.7 kW / Heat input 30.0 kW (RD537i L.P.G)

Typical repair cost £150-300 (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 80 fault code

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

537i Repair: £150-300

Source

Worcester Bosch 80 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