BoilerFaultCodesYour boiler is failing to ignite because it cannot detect enough water pressure to run safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No main burner - No water
DIY fix possible
Locate the external filling loop, usually two silver or black valves with a braided hose underneath the boiler.Slowly open the valves to let water into the system until the pressure gauge reads between 1.0 and 1.5 bar.Close both valves tightly and restart the boiler.
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Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like 6.iii — no call-out fees, no surprises.
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Chaffoteaux Celtic 2 24 Rsc 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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