Low
SG1 on Ideal Mexico Super 100FF / 125FF

Your boiler is currently attempting to light its burner, and this code is simply a normal indicator that the ignition process is active.

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

Flashes to indicate ignition operation (stops after detection).

Shared across the Mexico Super 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.

Engineer required

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

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Boiler cover options

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All 28 fault codes on the Mexico Super 100FF / 125FF

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

242526495051308 557319 494381 656383 598386 575398 055E01E01 372E01 374E01 490E01 505E01-372E01-374E01-490E01-505H nI3L EL FNeon I3Neon SG1

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