How much does it cost to fix Alpha error code Section E?

Typical repair cost for the Alpha Section E fault is £120-250 including labour.

Section E High

Alpha Section E Fault Code

Q: What does the Alpha Section E fault code mean?

Your boiler is struggling to clear exhaust gases properly, so it has safely shut itself down to prevent any risk.

Also written as SECTIONE — same fault.

The Alpha Section E fault code means: your boiler is struggling to clear exhaust gases properly, so it has safely shut itself down to prevent any risk.. It appears on 1 Alpha model in our database.

Technical description: 240 V across PCB terminals 13, N (Air pressure switch problem, blockage of pressure tubes, or restriction in flue)

Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Alpha models that show the Section E fault code

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

240XE Repair: £120-250

Source

Alpha Section E fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026