How much does it cost to fix Baxi error code Pressure of 3 or greater?

Typical repair cost for the Baxi Pressure of 3 or greater fault is £120-250 including labour.

Pressure of 3 or greater Emergency

Baxi Pressure of 3 or greater Fault Code

Q: What does the Baxi Pressure of 3 or greater fault code mean?

Your boiler has become dangerously pressurized, which is causing it to automatically release water to prevent a potential rupture.

Also written as PRESSUREOF3ORGREATER — same fault.

The Baxi Pressure of 3 or greater fault code means: your boiler has become dangerously pressurized, which is causing it to automatically release water to prevent a potential rupture.. It appears on 1 Baxi model in our database.

Technical description: A pressure of 3 or greater indicates a fault. The safety pressure relief valve will operate.

Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Baxi models that show the Pressure of 3 or greater fault code

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

Combi 80e Repair: £120-250

Source

Baxi Pressure of 3 or greater 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