BoilerFaultCodesIntergas 0.0 Fault Code
Also written as 00 — same fault.
The Intergas 0.0 fault code means: your boiler has lost the correct water pressure needed to run, or it can no longer accurately read how much water is inside the system.. It appears on 3 Intergas models in our database.
Technical description: Pressure sensor fault: Repressurise central heating circuit via filling loop, Blocked pressure sensor
DIY fix possible
Locate the filling loop (a silver flexi-hose) underneath the boiler.Open the valves on the loop to allow water into the system until the pressure gauge reads between 1.0 and 1.5 bar.Close the valves tightly and check for any leaks.
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Intergas models that show the 0.0 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Intergas 0.0 fault code information on this page is sourced and cross-checked against the official Intergas service / installation manuals for each affected model.
- Intergas Combi Compact HRE manual (PDF)
- Intergas Rapid manual (PDF)
- Intergas Rapid 25 32 manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026