Low
Neon I3 on Ideal Classic NF30–NF80

Your boiler is receiving power and is currently in its normal standby state, meaning it is ready to fire up whenever you turn on your heating or hot water.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Mains electricity ON.

Shared across the Ideal Classic NF range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

No action is required as this is a normal operating status lightCheck your thermostat settings if you were expecting the heating to be on

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All 3 fault codes on the Classic NF30–NF80

Seeing a different code? Every code this model can display, in one place.

Neon I1Neon I2

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