Low
05 on Chaffoteaux Talia Green 25

Your boiler has detected very cold temperatures and is running the pump to stop the water inside from freezing.

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

Anti freezing system, pump on

From this model's manual
Verified against the Chaffoteaux Talia Green 25 installation & service manual, page 17.
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

Check if the boiler is located in an unheated space like a cold garage or loftEnsure the external condensate pipe is insulated to prevent freezingWait for the ambient temperature to rise, at which point the system should reset automatically

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