How much does it cost to fix boiler error code Lock-out signal lamp E blinks?

Typical repair cost for the boiler Lock-out signal lamp E blinks fault is £120-350 including labour.

Lock-out signal lamp E blinks High

Boiler Fault Code Lock-out signal lamp E blinks

Also written as LOCKOUTSIGNALLAMPEBLINKS — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Lock-out signal lamp E blinks appears across 2 boiler brands and 7 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has tried to start up but failed to ignite the gas flame, causing the system to shut down for safety. (As reported on Ideal Mini HE)

Pick your boiler brand for the Lock-out signal lamp E blinks fix

Biasi Lock-out signal lamp E blinks 1 model Ideal Lock-out signal lamp E blinks 6 models

Source

Information for the Lock-out signal lamp E blinks 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