P.06 Low

Glow-worm P.06 Fault Code

Also written as P06 — same fault.

The Glow-worm P.06 fault code means: your boiler is currently running an automatic 5-minute cycle to clear trapped air from the heating system, which often happens after it has been serviced or refilled.. It appears on 11 Glow-worm models in our database.

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.

Technical description: Venting the installation | The function is activated for a period of 5 minutes on the heating circuit. Make sure that the air vent is open.
Typical repair cost £0 (including labour)

DIY fix possible

Wait for the 5-minute countdown to complete automatically.Check that the small black cap on the automatic air vent inside the boiler is slightly loose.Check your radiators for cold spots and bleed them if necessary to help remove remaining air.

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Glow-worm models that show the P.06 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Glow-worm P.06 fault code information on this page is sourced and cross-checked against the official Glow-worm service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026