EE 0055 High

Ariston EE 0055 Fault Code

Also written as EE0055 — same fault.

The Ariston EE 0055 fault code means: your boiler has detected a faulty sensor, meaning it cannot correctly measure the temperature of the hot water going to your taps.. It appears on 4 Ariston models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Domestic hot water temperature probe in short circuit
Typical repair cost £120-200 (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 EE 0055 fault code

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

Source

Ariston EE 0055 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