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wb combi low pressure

Joined
9 Dec 2007
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United Kingdom
hello
I have a WB 35cdi ii. I'm familiar with repressurizing etc and done the usual interwebs looking up to try to understand/resolve, but can't find this.
The boiler is say at .5 pressure and works ok. I repressurize it to 1 bar (as recommended in the manual) for good normal working and over a couple of days it is down to .5 again. It doesn't seem to lose any more pressure and works ok and the pressure seems to hover around .5 when cold. When working goes to around 1 bar. Rads seems fine, hot water is fine etc.
Flummoxed and not sure whether to just ignore unless it starts dropping more or starts going obviously wrong or to get the experts in before the winter.
Anyone explain/give advice?
Thanks.
 
If it doesn't continue to fall below 0.5 bar I wouldn't worry. If it does you have a problem that needs investigating.
 

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