Low
Min - Max on Alpha Intec 28GS

Your boiler is currently in a manual setup mode for output adjustments rather than reporting a functional breakdown.

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

Adjustable operating curves (Blue LED)

Engineer required

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

Find a Gas Safe engineer
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