How much does it cost to fix Ariston error code EE0033?

Typical repair cost for the Ariston EE0033 fault is £120-£250 including labour.

EE0033 High

Ariston EE0033 Fault Code

Q: What does the Ariston EE0033 fault code mean?

Your boiler has detected an unusually high temperature reading even though it should be resting, which usually suggests a faulty sensor or a circulation problem.

The Ariston EE0033 fault code means: your boiler has detected an unusually high temperature reading even though it should be resting, which usually suggests a faulty sensor or a circulation problem.. It appears on 3 Ariston models in our database.

Technical description: Flow temperature over 100°C while boiler is not in operation (stand-by)

Typical repair cost £120-£250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ariston models that show the EE0033 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ariston EE0033 fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026