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- 27 Feb 2006
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Can anyone help - this is a wierd one. When timer set for constant hotwater I get hot upstairs radiators and no hot water - downstairs rads stay cold. When I set timer full 24 hour heating and 24 hour hot water - I get hot radiators throughout and still no hot water. The timer is of the older machanical type. There is no option to switch to central heating only.
The hot cylinder tank stays cold and does not have any electrical device or themostatic valve connected to it. Used to work fine upto a week ago.
It is Potterton upright boiler with normal gravity fed cold water to the hot water cylinder. All hot water pipes from the boiler are hot
PS. I was thinking of an air trap - but I have no idea how it got it and how to release the air.
The hot cylinder tank stays cold and does not have any electrical device or themostatic valve connected to it. Used to work fine upto a week ago.
It is Potterton upright boiler with normal gravity fed cold water to the hot water cylinder. All hot water pipes from the boiler are hot
PS. I was thinking of an air trap - but I have no idea how it got it and how to release the air.