BoilerFaultCodesIntergas E10 Fault Code
The Intergas E10 fault code means: your boiler has stopped working because it cannot correctly monitor the temperature of the water leaving the unit.. It appears on 6 Intergas models in our database.
Technical description: Flow sensor S1 defective
What causes the Intergas E10 fault?
This fault occurs when the boiler's control board loses communication with the sensor responsible for measuring the heat of the water leaving the unit. The most common reason is that the internal components of the sensor have failed due to age or electrical wear, though it can also be caused by loose or damaged wiring connecting the sensor to the main board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Intergas models that show the E10 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Intergas E10 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