How much does it cost to fix boiler error code 371?

Typical repair cost for the boiler 371 fault is £120-220 including labour.

371 Medium

Boiler Fault Code 371

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 371 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 is having trouble accurately measuring the temperature of the water flowing to a specific part of your heating system, so it has stopped that circuit to be safe. (As reported on ECA FELiS FL 50 HM)

Pick your boiler brand for the 371 fix

ECA 371 1 model

Source

Information for the 371 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