How much does it cost to fix boiler error code Section A?

Typical repair cost for the boiler Section A fault is £80-180 including labour.

Section A High

Boiler Fault Code Section A

Also written as SECTIONA — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Section A appears across 2 boiler brands and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is not receiving any electrical power from the main supply or has a blown internal fuse, leaving the unit completely unresponsive. (As reported on Baxi System)

Pick your boiler brand for the Section A fix

Alpha Section A 1 model Baxi Section A 2 models

Source

Information for the Section A fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

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