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robl
Joined: 05 Aug 2007
Posts: 3
Location: Northampton
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 Posted: Sun Aug 05, 2007 7:02 pm Post subject: Rads on when heating is off |
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On a s plan heating system two upstairs rads become warm when only the hot water is on , could this be a faulty two port valve?  |
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thescruff
Moderator
Joined: 03 May 2003
Posts: 4616
Location: Bath
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| Posted: Sun Aug 05, 2007 7:10 pm Post subject: |
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Possibly, but it could also be a system design fault.
Can you give us more details on how the valves (make/model), pump etc are piped up, as well as system information, e.g. sealed or open vented etc.
A photo or two may be handy |
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robl
Joined: 05 Aug 2007
Posts: 3
Location: Northampton
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| Posted: Sun Aug 05, 2007 7:32 pm Post subject: |
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Honeyell two port valves, grunfoss pump , open vented system.
A new boiler has recently been fitted and i am told thse rads did not get warm before the boiler instalation.
Cheers rob  |
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thescruff
Moderator
Joined: 03 May 2003
Posts: 4616
Location: Bath
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| Posted: Sun Aug 05, 2007 7:37 pm Post subject: |
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Make and model of the boiler.
Has a by-pass valve been fitted and where.
What alterations were made when connecting the new boiler. |
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robl
Joined: 05 Aug 2007
Posts: 3
Location: Northampton
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| Posted: Sun Aug 05, 2007 7:39 pm Post subject: |
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Will have to take another look and get back to you.
Thanks Rob |
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