How much does it cost to fix Ferroli error code 50?

Typical repair cost for the Ferroli 50 fault is £120-250 including labour.

50 High

Ferroli 50 Fault Code

Q: What does the Ferroli 50 fault code mean?

Your boiler has shut down because a sensor has detected that the water inside the heating circuit has reached an unsafely high temperature.

The Ferroli 50 fault code means: your boiler has shut down because a sensor has detected that the water inside the heating circuit has reached an unsafely high temperature.. It appears on 2 Ferroli models in our database.

Technical description: Central heating limit thermostat

Typical repair cost £120-250 (including labour)

DIY fix possible

Check that all radiator valves are fully openEnsure the boiler pressure is between 1 and 1.5 barReset the boiler using the reset button once the unit has cooled down

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Ferroli models that show the 50 fault code

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

Source

Ferroli 50 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