How much does it cost to fix Potterton error code Error 110?

Typical repair cost for the Potterton Error 110 fault is £120-250 including labour.

Error 110 High

Potterton Error 110 Fault Code

Q: What does the Potterton Error 110 fault code mean?

Your boiler has detected that it is getting dangerously hot and has automatically shut itself down to prevent damage.

Also written as ERROR110 — same fault.

The Potterton Error 110 fault code means: your boiler has detected that it is getting dangerously hot and has automatically shut itself down to prevent damage.. It appears on 2 Potterton models in our database.

Technical description: Overheat thermostat operated or faulty

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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Potterton models that show the Error 110 fault code

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

Source

Potterton Error 110 fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.

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