What does the Glow-worm Neon 2 NOT lit fault code mean?

Your boiler has stopped working because it has either lost water pressure or a safety sensor has detected that it is getting too hot.

How much does it cost to fix Glow-worm error code Neon 2 NOT lit?

Typical repair cost for the Glow-worm Neon 2 NOT lit fault is £120-250 including labour.

Check your pressure gauge located on the boiler; if it is below 1 bar, increase it using the external filling loop until it reaches 1.5 bar

Manufacturer manual

Low water pressure (sealed system), Overheat cut off device tripped or thermostat, overheat cut off device faulty.

From this model's manual

Verified against the Ultimate 100ff 120ff installation & service manual.

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

Boiler cover options

A cover plan would handle faults like Neon 2 NOT lit: no call-out fees, no surprise bills.

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