How much does it cost to fix Ferroli error code Boiler shut down (lock out)?

Typical repair cost for the Ferroli Boiler shut down (lock out) fault is £120-250 including labour.

Boiler shut down (lock out) High

Ferroli Boiler shut down (lock out) Fault Code

Q: What does the Ferroli Boiler shut down (lock out) fault code mean?

Your boiler has stopped working as a safety precaution and needs a manual reset to try and start up again.

Also written as BOILERSHUTDOWNLOCKOUT — same fault.

The Ferroli Boiler shut down (lock out) fault code means: your boiler has stopped working as a safety precaution and needs a manual reset to try and start up again.. It appears on 3 Ferroli models in our database.

Technical description: Red lockout light illuminated. Requires turning the on/off/reset switch clockwise to the reset position.

Typical repair cost £120-250 (including labour)

Engineer required

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

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Ferroli models that show the Boiler shut down (lock out) fault code

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

Source

Ferroli Boiler shut down (lock out) 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