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).

From this model's manual
Verified against the Ideal Mexico Super 100ff 125ff System 3 installation & service manual, page 31.
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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