I'm trying to replace an old Landys and Gyr RWB2 heating & hot water timer with a Horstmann 425 Tiara. I'm just a bit perplexed as to the wiring - I've looked and the wiring diagram for the old timer and tried to convert it to the new 'tiara' timer. But it looks totally wrong. Can someone have a look and see if they can spot what I've done wrong? Heating timers are not my forte. View attachment 20180312_100733.jpg Edit: Just for the record, that's not my shoddy wiring.