How much does it cost to fix boiler error code flashing red LED?

Typical repair cost for the boiler flashing red LED fault is £90-180 including labour.

flashing red LED Medium

Boiler Fault Code flashing red LED

Also written as FLASHINGREDLED — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code flashing red LED appears across 2 boiler brands and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is currently running at a restricted low-power setting designed for testing purposes, which may prevent it from heating your home or water effectively. (As reported on Vokera Linea 7)

Pick your boiler brand for the flashing red LED fix

Potterton flashing red LED 2 models Vokera flashing red LED 3 models

Source

Information for the flashing red LED 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