What does the Ariston L.E.D. G fault code mean?

Your boiler has automatically 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 L.E.D. G?

Typical repair cost for the Ariston L.E.D. G fault is £150-300 including labour.

Overheating. Primary circuit reaches a temperature in excess of 110°C.

This is a emergency 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.

Safety-critical — turn off, read this.