How much does it cost to fix boiler error code 030?

Typical repair cost for the boiler 030 fault is £150-350 including labour.

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Boiler Fault Code 030

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code 030 appears across 2 boiler brands and 8 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 that water is failing to circulate correctly, meaning it is getting too hot in one part of the system compared to another. (As reported on Ideal Maximiser SE)

Pick your boiler brand for the 030 fix

Ideal 030 1 model Navien 030 7 models

Source

Information for the 030 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