How much does it cost to fix boiler error code B LED 2?

Typical repair cost for the boiler B LED 2 fault is £120-220 including labour.

B LED 2 Medium

Boiler Fault Code B LED 2

Also written as BLED2 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code B LED 2 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler believes a hot water tap is running continuously, which is preventing it from heating your home normally. (As reported on Ferroli Arean)

Pick your boiler brand for the B LED 2 fix

Ferroli B LED 2 2 models

Source

Information for the B LED 2 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