How much does it cost to fix Ariston error code EE0077?

Typical repair cost for the Ariston EE0077 fault is £120-220 including labour.

EE0077 High

Ariston EE0077 Fault Code

Q: What does the Ariston EE0077 fault code mean?

Your boiler has stopped working because a sensor that measures water temperature is reporting a faulty signal, causing the system to shut down for safety.

The Ariston EE0077 fault code means: your boiler has stopped working because a sensor that measures water temperature is reporting a faulty signal, causing the system to shut down for safety.. It appears on 1 Ariston model in our database.

Technical description: Heating flow temperature probe short circuited

Typical repair cost £120-220 (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 EE0077 fault code

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

Clas One Repair: £120-220

Source

Ariston EE0077 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