Medium
61 on Alpha Intec2 30SE

Your boiler is struggling because there is trapped air inside the system, which is preventing water from circulating properly to heat your home.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Air in the pump. Restricted CH flow due to air or a circuit restriction

From this model's manual
Verified against the Alpha Intec2 25 28xe installation & service manual.
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

Turn off the power to the boiler and let it cool down for 30 minutes.Go to your radiators and use a bleed key to release any trapped air until water starts to trickle out.Check the pressure gauge on the front of the boiler and top it up to 1.5 bar using the filling loop if it has dropped.

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