How much does it cost to fix boiler error code AL 96?

Typical repair cost for the boiler AL 96 fault is £100-250 including labour.

AL 96 Emergency

Boiler Fault Code AL 96

Also written as AL96 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code AL 96 appears across 1 boiler brand and 13 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected a blockage or restriction in the flue pipe which is preventing exhaust gases from escaping safely, causing the system to shut down. (As reported on Sime Brava Slim HE Regular)

Pick your boiler brand for the AL 96 fix

Sime AL 96 13 models

Source

Information for the AL 96 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 7 July 2026