How much does it cost to fix boiler error code EE 0099?

Typical repair cost for the boiler EE 0099 fault is £120-220 including labour.

EE 0099 High

Boiler Fault Code EE 0099

Also written as EE0099 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code EE 0099 appears across 1 boiler brand and 4 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 an electrical fault with one of its temperature sensors, meaning it cannot accurately read the water temperature and has shut down to protect itself. (As reported on Ariston E-Combi One 30)

Pick your boiler brand for the EE 0099 fix

Ariston EE 0099 4 models

Source

Information for the EE 0099 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