Medium
6.v on Chaffoteaux Celtic 24 HE

Your boiler is unable to provide central heating because its internal temperature sensor for the radiators has likely stopped working.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Technical description

No main burner - Heating thermostat faulty (CH only)

Engineer required

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

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Related fault codes

5.vView →

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