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

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

Pressure 3 or greater Emergency

Baxi Pressure 3 or greater Fault Code

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

Your boiler's internal water pressure has reached a dangerous level, causing a safety valve to activate to prevent damage.

Also written as PRESSURE3ORGREATER — same fault.

The Baxi Pressure 3 or greater fault code means: your boiler's internal water pressure has reached a dangerous level, causing a safety valve to activate to prevent damage.. It appears on 1 Baxi model in our database.

Technical description: Indicates a fault. The safety pressure relief valve will operate at a pressure of 3.

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 3 or greater fault code

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

Solo 3 PFL Repair: £120-250

Source

Baxi Pressure 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