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

Typical repair cost for the boiler 180 fault is £120-250 including labour.

180 High

Boiler Fault Code 180

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 180 appears across 3 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 has detected an issue with the safety temperature monitoring system and has automatically shut down to prevent overheating. (As reported on Sime Dewy 30/130 HE FS)

Pick your boiler brand for the 180 fix

Atag 180 3 models Potterton 180 1 model Sime 180 1 model

Source

Information for the 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