BoilerFaultCodesVokera Low-pressure fault code Fault Code
Also written as LOWPRESSUREFAULTCODE — same fault.
The Vokera Low-pressure fault code fault code means: your boiler has stopped working because the water pressure inside the system has dropped too low to allow it to run safely.. It appears on 2 Vokera models in our database.
Technical description: Insufficient system water pressure (min. 0.5 bar) resulting in the pump and fan being prevented from operating.
What causes the Vokera Low-pressure fault code fault?
This fault occurs when the internal water pressure drops below the minimum level required for the boiler to fire up safely. The most common reasons are a slow leak somewhere in your radiator network or the pressure being manually drained away during recent plumbing work.
This issue often appears when you first turn the heating back on in autumn, as the expansion and contraction of pipes can highlight small leaks that developed over the summer.
DIY fix possible
Locate the filling loop (a flexible silver hose) underneath or near the boiler.Slowly open the one or two taps on the loop until you hear water entering the system.Watch the pressure gauge until it reaches between 1.0 and 1.5 bar, then close the taps fully.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Vokera models that show the Low-pressure fault code fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera Low-pressure fault code fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026