How much does it cost to fix Vokera error code PressureGauge < 0.5 BAR?

Typical repair cost for the Vokera PressureGauge < 0.5 BAR fault is £0-120 including labour.

PressureGauge < 0.5 BAR High

Vokera PressureGauge < 0.5 BAR Fault Code

Q: What does the Vokera PressureGauge < 0.5 BAR fault code mean?

Your boiler has stopped working because the water level inside the system has dropped too low to operate safely.

Q: How much does it cost to fix Vokera error code PressureGauge < 0.5 BAR?

Typical repair cost for the Vokera PressureGauge < 0.5 BAR fault is £0-120 including labour.

Q: Can I fix Vokera fault code PressureGauge < 0.5 BAR myself?

Locate the filling loop, which is usually a flexible silver hose with one or two small valves underneath the boiler.

Also written as PRESSUREGAUGE05BAR — same fault.

The Vokera PressureGauge < 0.5 BAR fault code means: your boiler has stopped working because the water level inside the system has dropped too low to operate safely.. It appears on 2 Vokera models in our database.

Technical description: Should the pressure fall below 0.5 BAR, the boiler shuts off automatically.

What causes the Vokera PressureGauge < 0.5 BAR fault?

This fault occurs when the sealed water circuit loses its required pressure, usually due to a small leak in the pipework or at a radiator valve. It can also happen if the expansion vessel has lost its internal air charge, causing water to be forced out of the safety discharge pipe.

This issue often surfaces when you turn your heating back on for autumn, as the sudden change in temperature and pressure can highlight minor leaks that weren't visible in the summer.

Typical repair cost £0-120 (including labour)

DIY fix possible

Locate the filling loop, which is usually a flexible silver hose with one or two small valves underneath the boiler.Slowly open the valve(s) to allow cold water into the system, watching the pressure gauge rise.Close the valves tightly once the pressure gauge reaches between 1.0 and 1.5 BAR.

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Vokera models that show the PressureGauge < 0.5 BAR fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Vokera PressureGauge < 0.5 BAR 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