Unable to have just HW, only CH/HW apply..?

29 Jun 2006
Reaction score
United Kingdom
I have moved into a new property and am having problems with the HW. On selecting just HW to be heated nothing happens. For example this is the case when the control is set to 'all day' and the thermostat is on the highest temperature.
Currently the only way to obtain hot water is to have the radiators turned off in most rooms and select both CH & HW.
The CH & HW slider move together if CH is selected. The HW slider can be moved on it's own.

Boiler - Potterton Flamingo 20-30
Controller - Potterton EP2000

Any idea's ..?

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Problem with motorised valve micro switch. There are lots of threads dealing with this very common problem. Try search facility on the forum.
With such an antiquated boiler I dont think there is very much "new" about that property!

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