How much does it cost to fix Intergas error code F13?

Typical repair cost for the Intergas F13 fault is £90-160 including labour.

F13 Medium

Intergas F13 Fault Code

Q: What does the Intergas F13 fault code mean?

Your boiler's hot water sensor has failed or become disconnected, meaning the system cannot tell how hot your water is and has stopped heating it for safety.

The Intergas F13 fault code means: your boiler's hot water sensor has failed or become disconnected, meaning the system cannot tell how hot your water is and has stopped heating it for safety.. It appears on 3 Intergas models in our database.

Technical description: DHW sensor open circuit

What causes the Intergas F13 fault?

This fault occurs when the boiler's control board loses communication with the sensor responsible for monitoring your hot water temperature. The most common reason is that the internal component has suffered an electrical failure or the connecting wires have vibrated loose or become damaged over time.

Typical repair cost £90-160 (including labour)

Engineer required

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

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Intergas models that show the F13 fault code

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

Source

Intergas F13 fault code information on this page is sourced and cross-checked against the official Intergas service / installation manuals for each affected model.

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