How much does it cost to fix Ferroli error code Incorrect gas rate?

Typical repair cost for the Ferroli Incorrect gas rate fault is £120-250 including labour.

Incorrect gas rate Emergency

Ferroli Incorrect gas rate Fault Code

Q: What does the Ferroli Incorrect gas rate fault code mean?

Your boiler is struggling to receive the correct amount of gas it needs to run safely and efficiently.

Also written as INCORRECTGASRATE — same fault.

The Ferroli Incorrect gas rate fault code means: your boiler is struggling to receive the correct amount of gas it needs to run safely and efficiently.. It appears on 1 Ferroli model in our database.

Technical description: Check that gas consumption is correct and adjust pressure if necessary

Typical repair cost £120-250 (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 →

Ferroli models that show the Incorrect gas rate fault code

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

Sigma 40 FF Repair: £120-250

Source

Ferroli Incorrect gas rate fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

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