How much does it cost to fix Baxi error code Pump Fault or Low Pressure?

Typical repair cost for the Baxi Pump Fault or Low Pressure fault is £40-350 including labour.

Pump Fault or Low Pressure High

Baxi Pump Fault or Low Pressure Fault Code

Q: What does the Baxi Pump Fault or Low Pressure fault code mean?

Your boiler has stopped working because the water pressure is too low or the pump that moves water around your radiators has failed.

Also written as PUMPFAULTORLOWPRESSURE — same fault.

The Baxi Pump Fault or Low Pressure fault code means: your boiler has stopped working because the water pressure is too low or the pump that moves water around your radiators has failed.. It appears on 1 Baxi model in our database.

Technical description: The neon will illuminate if the circulating pump is faulty or the system pressure drops below the minimum requirement (0.5 bar).

Typical repair cost £40-350 (including labour)

DIY fix possible

Locate the pressure gauge on the front of the boilerFind the filling loop (usually silver flexible hoses underneath the boiler)Slowly open the valves until the pressure gauge reaches between 1.0 and 1.5 bar, then close them tightly

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Baxi models that show the Pump Fault or Low Pressure fault code

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

Bahama 80e / 105e Repair: £40-350

Source

Baxi Pump Fault or Low Pressure 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