How much does it cost to fix Baxi error code Pressure Gauge below 1 bar?

Typical repair cost for the Baxi Pressure Gauge below 1 bar fault is £0-120 including labour.

Pressure Gauge below 1 bar High

Baxi Pressure Gauge below 1 bar Fault Code

Q: What does the Baxi Pressure Gauge below 1 bar fault code mean?

Your boiler has lost water pressure, meaning there isn't enough water in the system to keep the heating and hot water running.

Also written as PRESSUREGAUGEBELOW1BAR — same fault.

The Baxi Pressure Gauge below 1 bar fault code means: your boiler has lost water pressure, meaning there isn't enough water in the system to keep the heating and hot water running.. It appears on 3 Baxi models in our database.

Technical description: System requires repressurising.

Typical repair cost £0-120 (including labour)

DIY fix possible

Locate the filling loop (usually a silver flexible hose) underneath your boiler.Slowly open the two black taps on the filling loop until you hear water flowing.Watch the pressure gauge and close both taps tightly once the needle reaches 1.5 bar.

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Baxi models that show the Pressure Gauge below 1 bar fault code

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

Source

Baxi Pressure Gauge below 1 bar fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026