High
30 70 on Chaffoteaux Serelia 24 MFFI

Your boiler is struggling to switch between heating your radiators and providing hot water, meaning you likely have no hot water from your taps.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Distribution valve stuck on heating

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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