theconrodkid
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| posted on 1/11/19 at 09:30 PM |
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central heating q
looks like the 3 way valve has expired inside the valve itself, mine is a pretty old sunvic with 4 wires (blue,orange,red, grey), all the ones at
screwfix are either 3 or 5 wire, timer is a satchwell.....am i heading for a world of pain ? 
who cares who wins
pass the pork pies
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ReMan
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| posted on 1/11/19 at 10:07 PM |
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Sunvic are still available. Modern Sunvic equivalent would probably the least painful if not a bit dearer than screwfix.
www.plusnine.co.uk
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theconrodkid
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| posted on 2/11/19 at 12:08 PM |
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yea but they are all 3 or 5 wires now, dont want it letting the magic smoke out 
who cares who wins
pass the pork pies
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MikeR
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| posted on 2/11/19 at 11:55 PM |
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Assuming it's listed, this may help.
http://www.sunvic.co.uk/downloads/product-wiring-diagrams-help/
Is then get the writing diagram from what ever Screwfix sell and see if it matches.
(Although really I'd go to a plumbing merchant and say "I want one of these" and show them your current one)
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MikeR
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| posted on 2/11/19 at 11:59 PM |
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In fact I think this page tells you how to map old valves to new wiring
http://www.sunvic.co.uk/downloads/product-wiring-diagrams-help/?resourceTypeID=12419
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theconrodkid
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| posted on 3/11/19 at 08:25 AM |
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Thanks Mike, ill have a read 
who cares who wins
pass the pork pies
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