How much does it cost to fix boiler error code 72?

Typical repair cost for the boiler 72 fault is £120-220 including labour.

72 High

Boiler Fault Code 72

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 72 appears across 5 boiler brands and 14 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is having trouble reading the temperature of the water returning to it, which means it has stopped working to prevent potential damage. (As reported on Vokera Linea HE)

Pick your boiler brand for the 72 fix

Alpha 72 6 models ECA 72 1 model Ideal 72 1 model Vokera 72 4 models Worcester Bosch 72 2 models

Source

Information for the 72 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