Hi
Our very old tempus 7 programmer has stopped working. I have bought the Drayton LP722 to replace it. As my tempus 7 is so old the backplates are different (mine has earth wire). I isolated the earth and wired the other wires as per the old plate on the LP722.
Unfortunately when I switched the power back on, only the hot water side of the programmer was working (ie boiler firing up). When I select the central heating nothing happens.
Any advice greatly appreciated as I specifically went for this model as from what I read it was an easy swap.
Thanks in advance.
Our very old tempus 7 programmer has stopped working. I have bought the Drayton LP722 to replace it. As my tempus 7 is so old the backplates are different (mine has earth wire). I isolated the earth and wired the other wires as per the old plate on the LP722.
Unfortunately when I switched the power back on, only the hot water side of the programmer was working (ie boiler firing up). When I select the central heating nothing happens.
Any advice greatly appreciated as I specifically went for this model as from what I read it was an easy swap.
Thanks in advance.