Low
P.05 on Heatline Compact 24

Your boiler is currently refilling its internal water system to ensure it has enough pressure to operate correctly.

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

Filling the appliance

From this model's manual
Verified against the Heatline Capriz Plus installation & service manual, page 27.
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 for a few minutes to see if the boiler completes the automatic filling process.Check if your boiler pressure gauge is between 1 and 1.5 bar.If the code persists, ensure the external filling loop valves are fully closed.

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