High
Red LED I on Ariston Egis 24 MFFI

Your boiler has stopped working because it failed to light the flame needed to heat the water.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Shutdown Due To Ignition Failure: In the event that the automatic ignition of the burner has failed

From this model's manual
Verified against the 617 IntesaTP23 30MFFIInst installation & service 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 is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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