Low
S.05 on Heatline CaprizPlus 24a

Your boiler is not actually experiencing a fault; it is simply taking a short, normal break to run the pump and fan to dissipate excess heat after a cycle.

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

Post run pump/fan

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

Wait approximately 5 to 10 minutes for the boiler to complete its cooling cycleMonitor the display to see if it changes back to a standard temperature reading or 'S.04'Ensure your room thermostat is calling for heat if the boiler does not restart after the wait period

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