Neon 7 High

Baxi Neon 7 Fault Code

Also written as NEON7 — same fault.

The Baxi Neon 7 fault code means: your boiler has switched itself off because it has detected an issue with the water flow through your heating system, likely due to low water pressure or a stuck pump.. It appears on 2 Baxi models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Fault on Pump or Low System Pressure
Typical repair cost £120-250 (including labour)

DIY fix possible

Check your boiler's pressure gauge and ensure it is between 1 and 1.5 barIf the pressure is low, locate the filling loop and open the valves to top up the system to 1.5 barOnce topped up, reset your boiler using the reset button

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Baxi models that show the Neon 7 fault code

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

Source

Baxi Neon 7 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