Low
LED 4 on Ideal Mexico Super CF3 40-80

Your boiler is receiving power and is currently in standby mode, which is the normal state when everything is functioning correctly.

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.

Technical description

Mains electricity on

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful