What does the Ariston Overheating fault code mean?

Your boiler has shut down because it has detected that the water inside the system has become dangerously hot.

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

Typical repair cost for the Ariston Overheating fault is £120-350 including labour.

Locate the reset button (usually marked 'R') on the control panel and press it.

Control shuts off the boiler if the primary circuit reaches a temperature in excess of 105°C. Red L.E.D. 'H' will illuminate.

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Each noise points to a different fault.

Sludge build-up — needs flushing, not bleeding.

Work through these before the call-out.