How much does it cost to fix boiler error code Red LED Flashing?

Typical repair cost for the boiler Red LED Flashing fault is £120-250 including labour.

Red LED Flashing High

Boiler Fault Code Red LED Flashing

Also written as REDLEDFLASHING — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Red LED Flashing appears across 5 boiler brands and 8 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 safety issue and has shut down to protect your home, which means you currently have no heating or hot water until it is reset or repaired. (As reported on Vokera Option)

Pick your boiler brand for the Red LED Flashing fix

Biasi Red LED Flashing 1 model Halstead Red LED Flashing 1 model Potterton Red LED Flashing 4 models Saunier Duval Red LED Flashing 1 model Vokera Red LED Flashing 1 model

Source

Information for the Red LED Flashing 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