BoilerFaultCodesFerroli Low water pressure Fault Code
Also written as LOWWATERPRESSURE — same fault.
The Ferroli Low water pressure fault code means: your boiler has stopped working because the amount of water inside your heating system has dropped below the required level.. It appears on 2 Ferroli models in our database.
Technical description: Low pressure will be indicated by flashing light in the middle of the facia illuminating (bar). The boiler pressure gauge should read at least 1 bar.
DIY fix possible
Locate the filling loop, which is usually a flexible silver hose connected to two valves beneath the boiler.Open the valves slowly to allow water into the system until the pressure gauge on the front of the boiler reads between 1 bar and 1.5 bar.Close both valves tightly and ensure there is no dripping from the connection points.
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Ferroli models that show the Low water pressure fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ferroli Low water pressure fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026