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Recent content by Normski

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    Water Heating Wont Work Unless Tank Thermostat Is Turned up and Down Manually!

    That's brilliant thank you. The motor is a Sunvik SZM 1801 which is discontinued so next challenge will be finding a compatible replacement. I suspect a replacement of the valve and motor is going to be needed, which was planned anyway so will bring that forward. Thanks again.
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    Water Heating Wont Work Unless Tank Thermostat Is Turned up and Down Manually!

    Thank you. Not something I had taken into account in terms of the valve making full travel until. Like you say when the valve is switched off again by the action of turning the stat down (valve starts to close), then stat up (valve starts to open again) might be the issue so I will get a new...
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    Water Heating Wont Work Unless Tank Thermostat Is Turned up and Down Manually!

    Thank you for taking the time to reply. Yes I can access that box and look at it (incidentally the actual valve motor needs replacing anyway as it is very noisey so happy to do that if it may be part of the problem). In terms of the connections, should I then look at anything in particular or...
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    Water Heating Wont Work Unless Tank Thermostat Is Turned up and Down Manually!

    Have a sytem boiler with unvented cylinder with 2 heating zones plus hot water in a house we moved into recently. To start with we were always amazed at the water pressure so on the odd occasion that the water was only luke warm it was easily forgiven, but over time we have come to realise that...
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