BoilerFaultCodesYour boiler is struggling to detect the water flow because the mains water pressure coming into your home is currently too weak.
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 stop tap located under your sink or where the water line enters your home is fully open.Ensure no other taps or appliances are using a high volume of water simultaneously.If you have recently had water works in your area, contact your local water provider to check for supply issues.
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 Sterling FF 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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