How much does it cost to fix Baxi error code E.02 – .07?

Typical repair cost for the Baxi E.02 – .07 fault is £0-120 including labour.

E.02 – .07 High

Baxi E.02 – .07 Fault Code

Q: What does the Baxi E.02 – .07 fault code mean?

Your boiler has detected that there is not enough water in the central heating system to operate safely.

Also written as E0207 — same fault.

The Baxi E.02 – .07 fault code means: your boiler has detected that there is not enough water in the central heating system to operate safely.. It appears on 24 Baxi models in our database.

Technical description: No or low system water pressure. system pressure less than 0.5bar

What causes the Baxi E.02 – .07 fault?

This fault occurs when the internal pressure sensor detects that the water level inside your heating system has dropped below a safe operating limit. The most common reason is a slow leak from a radiator valve or pipework, though it often happens after you have bled your radiators and haven't topped the pressure back up.

This issue is frequently seen in autumn when homeowners turn their heating back on for the first time or bleed their radiators to remove air pockets.

Typical repair cost £0-120 (including labour)

DIY fix possible

Locate the filling loop (the flexible silver hose) underneath your boiler.Slowly open the one or two taps on the loop until you hear water flowing.Watch the pressure gauge until it reaches 1.5 bar, then close the taps tightly.

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Baxi models that show the E.02 – .07 fault code

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

Source

Baxi E.02 – .07 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