How much does it cost to fix boiler error code 339?

Typical repair cost for the boiler 339 fault is £150-300 including labour.

339 High

Boiler Fault Code 339

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code 339 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 lost communication with the pump responsible for moving water through your heating system, meaning it cannot safely heat your home or water. (As reported on ECA FELiS FL 50 HM)

Pick your boiler brand for the 339 fix

ECA 339 1 model

Source

Information for the 339 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