Low
05 on Chaffoteaux Minima HE

Your boiler is simply protecting itself from freezing by circulating water to keep the system temperature at a safe level.

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.

Technical description

Pump anti-freeze: When the boiler senses a temperature of 8°C or lower, the pump will run for 2 minutes, the boiler will then check if the flow temperature is higher than 8°C.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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