High
INSUFFICIENT WATER FLOW on Chaffoteaux Britony II 30FF

Your boiler is struggling to detect the flow of water necessary to ignite and provide you with heating or hot water.

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.

What the manual says

Manufacturer manual

i) Water service tap partly closed, ii) Blocked venturi, iii) low water pressure, iv) Water governor faulty, v) Water governor sticking, vi) Foreign matter in water section, vii) Water regulator (LP model) Adjust

From this model's manual
Verified against the Chaffoteaux Britony Ii 30ff installation & service 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 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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