Low
d.94 on Heatline CaprizPlus 24a

Your boiler is signalling that it needs to clear its internal memory or reset its stored error logs to return to normal operation.

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

Reset the fault codes

From this model's manual
Verified against the Heatline Caprizplus 24a installation & service manual, page 25.
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

Locate the reset button or dial on the front control panel.Press and hold the reset button for 3 to 5 seconds.Wait a few moments for the boiler to cycle through its startup sequence and check if the code clears.

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