BoilerFaultCodesIntergas F07 Fault Code
The Intergas F07 fault code means: your boiler has detected that the exhaust gases are getting too hot or there is a fault with the temperature sensor, causing the system to shut down for safety.. It appears on 3 Intergas models in our database.
Technical description: Flue sensor short circuit / Flue temperature too high
What causes the Intergas F07 fault?
This fault occurs when the boiler's safety system detects that the gases leaving through the flue are significantly hotter than they should be, or the sensor itself has malfunctioned. The most common reasons are a build-up of debris inside the heat exchanger that prevents efficient cooling, or a simple electrical failure in the flue sensor's wiring.
This issue is more common during the winter months when the boiler is running at maximum capacity for long periods to heat the radiators.
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 →Intergas models that show the F07 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Intergas F07 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