Your boiler has stopped working because the water pressure inside the system has dropped too low to operate safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Insufficient Water
DIY fix possible
Locate the filling loop (a silver flexi-hose) connected to the underside of the boiler.Open the valves on the filling loop to allow cold mains water into the heating system.Watch the pressure gauge on the front of the boiler until the needle reaches the green zone, typically between 1.0 and 1.5 bar.Close the valves firmly and ensure the filling loop is disconnected if it is a removable type.
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A boiler cover plan would cover faults like 8.15 — no call-out fees, no surprises.
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Chaffoteaux Britony Duo 55 is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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