How much does it cost to fix Heatline error code F07?

Typical repair cost for the Heatline F07 fault is £120-200 including labour.

F07 High

Heatline F07 Fault Code

Q: What does the Heatline F07 fault code mean?

Your boiler has lost the ability to accurately measure the temperature of your hot water supply, so it has stopped heating to prevent potential overheating.

The Heatline F07 fault code means: your boiler has lost the ability to accurately measure the temperature of your hot water supply, so it has stopped heating to prevent potential overheating.. It appears on 2 Heatline models in our database.

Technical description: DHW thermistor (NTC) sensor fault

Typical repair cost £120-200 (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 →

Heatline models that show the F07 fault code

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

Capriz Plus Repair: £120-200
Vizo Plus Repair: £90-160

Source

Heatline F07 fault code information on this page is sourced and cross-checked against the official Heatline service / installation manuals for each affected model.

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