How much does it cost to fix Baxi error code E.04 – .13?

Typical repair cost for the Baxi E.04 – .13 fault is £250-£450 including labour.

E.04 – .13 High

Baxi E.04 – .13 Fault Code

Q: What does the Baxi E.04 – .13 fault code mean?

Your boiler's fan, which safely pushes exhaust fumes away, has stopped spinning or cannot communicate with the system.

Also written as E0413 — same fault.

The Baxi E.04 – .13 fault code means: your boiler's fan, which safely pushes exhaust fumes away, has stopped spinning or cannot communicate with the system.. It appears on 24 Baxi models in our database.

Technical description: Permanent fault. Fan rotor blocked, fan seized or wiring to fan damaged.

What causes the Baxi E.04 – .13 fault?

This fault occurs when the boiler's control board detects that the fan is not spinning at the required speed to safely clear exhaust gases. The most common reasons are a physical blockage inside the fan casing, debris seizing the internal bearings, or a loose electrical connection between the fan and the main computer.

Typical repair cost £250-£450 (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 E.04 – .13 fault code

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

Source

Baxi E.04 – .13 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