How much does it cost to fix boiler error code 398 055?

Typical repair cost for the boiler 398 055 fault is £140-£280 including labour.

398 055 High

Boiler Fault Code 398 055

Also written as 398055 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 398 055 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's main burner is not receiving the correct flow of gas needed to ignite and stay lit, meaning your heating system will not work. (As reported on Ideal Mexico Super CF3 40-80)

Pick your boiler brand for the 398 055 fix

Ideal 398 055 1 model

Source

Information for the 398 055 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 27 April 2026