BoilerFaultCodesYour boiler is struggling to provide hot water because the incoming mains water supply pressure is too low for the system to detect or operate correctly.
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: Hot water does not operate over temperature range - Low inlet water pressure
DIY fix possible
Check that the mains water stopcock under your kitchen sink is fully openEnsure no other taps in the house are fully open or leaking significantlyCheck if there are any current water supply maintenance works reported by your local water provider
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like 5.ii — 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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