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Discuss BOSCH RD532 varying ouside fan in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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Plictis

Hi Guys,

I have a taugh one for you.

my central heating, since I have added some more pipework around house ( moved some radiators and added 2 little one more ) I have noticed that the outside fan, sometimes goes loud and few seconds later goes quiet and so on. it does that only on the CH mode on hot water doesnt. I have bleed all air out, I am pretty sure. all radiators are heating up, and there is no ai in the system.

I have "moved" one working radiator around the house so I enforce the central heating to push propper in all the radiators.

can you advice why is this fan going up and down while the temperature on the reader stays the same?

Tanks,
 
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