E32 Medium

Baxi E32 Fault Code

The Baxi E32 fault code means: your boiler has detected that limescale buildup is affecting the sensor that monitors your hot water flow, which may lead to lukewarm water or inconsistent temperatures.. It appears on 1 Baxi model in our database.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description: Scaling alarm (DHW flow sensor)
Typical repair cost £120-200 (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 E32 fault code

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

Source

Baxi E32 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