Low
P.06 on Heatline Monza

Your boiler is currently running a self-diagnostic cycle to remove trapped air from the internal system.

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

Venting the installation

From this model's manual
Verified against the Heatline Monza 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 the cycle to finish automatically, which usually takes a few minutes.If the code persists, check that your system pressure is set to the correct level, typically between 1 and 1.5 bar.Bleed your radiators to ensure no trapped air is affecting the system.

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