How much does it cost to fix Vokera error code Pressure < 0.5 bar?

Typical repair cost for the Vokera Pressure < 0.5 bar fault is £80-150 including labour.

Pressure < 0.5 bar High

Vokera Pressure < 0.5 bar Fault Code

Q: What does the Vokera Pressure < 0.5 bar fault code mean?

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

Q: How much does it cost to fix Vokera error code Pressure < 0.5 bar?

Typical repair cost for the Vokera Pressure < 0.5 bar fault is £80-150 including labour.

Q: Can I fix Vokera fault code Pressure < 0.5 bar myself?

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

Also written as PRESSURE05BAR — same fault.

The Vokera Pressure < 0.5 bar fault code means: your boiler has stopped working because the water pressure inside your heating system has dropped too low to operate safely.. It appears on 4 Vokera models in our database.

Technical description: The boiler shuts off automatically if the system pressure falls below 0.5 bar.

Typical repair cost £80-150 (including labour)

DIY fix possible

Locate the filling loop, which is usually a flexible silver hose with one or two valves underneath the boiler.Slowly open the valve(s) to let mains water into the system until the pressure gauge needle sits between 1.0 and 1.5 bar.Close the valve(s) tightly and check that the boiler restarts.

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Vokera models that show the Pressure < 0.5 bar fault code

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

Source

Vokera Pressure < 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