BoilerFaultCodesIntergas F030 Fault Code
The Intergas F030 fault code means: your boiler has stopped working because a internal sensor that monitors the temperature of the flue or hot water system has developed a fault.. It appears on 4 Intergas models in our database.
Technical description: Sensor fault S3.
What causes the Intergas F030 fault?
This fault occurs when the boiler's control board loses communication with the specific internal sensor responsible for monitoring system temperatures. The most common reason is that the sensor has electronically failed or the wiring connecting it to the main circuit board has become loose or damaged.
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 F030 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Intergas F030 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