Low
S.11 on Heatline Capriz Plus

Your boiler is currently preparing to ignite, but the internal fan is checking its position before the system starts burning fuel.

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

Pre-run fan

From this model's manual
Verified against the Heatline Capriz Plus installation & service manual, page 26.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

No action required; this is a normal status messageWait for the boiler to complete its pre-ignition checksMonitor the display to see if it progresses to a heating or hot water symbol

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