How much does it cost to fix boiler error code E78-180?

Typical repair cost for the boiler E78-180 fault is £150-300 including labour.

E78-180 Emergency

Boiler Fault Code E78-180

Also written as E78180 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code E78-180 appears across 1 boiler brand and 1 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 that exhaust gases are not escaping correctly through the flue, which is a safety mechanism to prevent dangerous fumes from entering your home. (As reported on Potterton Kingfisher MF RSL)

Pick your boiler brand for the E78-180 fix

Potterton E78-180 1 model

Source

Information for the E78-180 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