Worcester Bosch showing CE 207 in Coventry? It is a low water pressure warning. How to check the gauge, when topping up is fine, and when it points to a leak.
If the needle sits well under one bar with the heating off, the code is telling the truth. The manufacturer sticker inside the case gives the exact figure for your boiler.
Worcester boilers have a filling loop or key underneath. Your manual shows how to use it. Fill slowly to the recommended pressure, close it fully, then reset.
A dripping copper pipe on the outside wall, a weeping radiator valve, or a tired expansion vessel. The outside pipe is the most common and the easiest to spot.
A system that loses pressure every week or two has a leak or a failing vessel. Refilling forever brings in fresh water, and fresh water brings corrosion and sludge.
No, the boiler simply refuses to run until pressure is restored. Smell gas? Leave the house, do not use switches, and call the National Gas Emergency line on 0800 111 999. A fault code is never a gas leak, but a smell always is.
Bleed a radiator a little to bring it back down, or ask for help - over-filling can make the relief valve discharge outside.
Once or twice a year after bleeding radiators is normal. Monthly means a leak worth finding.
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