What does the Grant Red neon lit fault code mean?

Your boiler has automatically turned off because it detected that the internal water temperature became dangerously high.

How much does it cost to fix Grant error code Red neon lit?

Typical repair cost for the Grant Red neon lit fault is £120-250 including labour.

Overheat thermostat has operated

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.

Work through these before the call-out.

Lockout fault with a reset-needed pattern.