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I'm pretty sure it's a fully pumped system with a three port valve. To elaborate, I have a water cylinder in the bedroom to which a PROSCON box is fitted (think it's a thermostat). A GRUNDFOS X pump is also fitted to the system, along with the three port valve which is a Honeywell 9021. All...

I'm not sure exactly what I've done (think I appear to have had original neutral disconnected rather that the no.2), anyway, the unit now switches on. The display and lights are on and the unit 'clicks' when I switch the water and heating to the on position......but......neither water or...

I'm not sure exactly what I've done (think I appear to have had original neutral disconnected rather that the no.2), anyway, the unit now switches on. The display and lights are on and the unit 'clicks' when I switch the water and heating to the on position......but......neither water or...

Thanks v much for info. Instructions do say that both units are connected neutral first with live following at number 1 position. Should I swap them anyway, or is this likely to cause damage? Thanks.

I need some advice if possible. I've swapped a Switchmaster 805 for a Sunvic 207XL and I can't get the Sunvic to work. The unit's display doesn't even light up (the CR2032 battery is installed in the unit). I've followed the re-wiring guide as per the Sunvic's instructions, i.e. wire all...

I need some advice if possible. I've swapped a Switchmaster 805 for a Sunvic 207XL and I can't get the Sunvic to work. The unit's display doesn't even light up (the CR2032 battery is installed in the unit). I've followed the re-wiring guide as per the Sunvic's instructions, i.e. wire all...