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S.58 on Heatline CaprizPlus 24a

Your boiler has detected that the water temperature is rising too quickly and is temporarily limiting its power to prevent overheating.

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

A fi xed modulation until the condition provides

From this model's manual
Verified against the Heatline Caprizplus 24a 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

Check that all radiator valves are fully openEnsure there is enough water pressure indicated on the boiler gauge (usually 1.0 to 1.5 bar)Bleed your radiators to remove any trapped air

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