Low
P.05 on Glow-worm Energy Regular

Your boiler is currently refilling its internal water system, which is a normal process that happens automatically.

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 product

From this model's manual
Verified against the Glow Worm Energy Regular 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 for a few minutes for the boiler to complete its automatic filling sequence.Do not turn off or reset the boiler while this message is displayed.If the code persists for more than 15 minutes, check that your external filling loop valves are fully closed.

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