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.

What the manual says

Manufacturer manual

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.

Shared across the Minima HE range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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All 34 fault codes on the Minima HE

Seeing a different code? Every code this model can display, in one place.

0101 to 9906A 01A 03A 36A 37A 39A 40A 41E 02E 04E 05E 06E 07E 08E 09E 10E 11E 12E 13E 14E 15E 16E 18E 20E 22E 23E 29E 37E 38E30E33

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