Thanks for all your help guys. I cracked it by testing all the wires with a multimeter while flicking the various switches on the old timer.
Now all is well. :D
Thanks for getting back to me guys.
I seem to have 1 pump, a mid-position valve and no thermostat on the tank.
Wire 1 = Live
Wire 2 = Neutral
Wire 3, 4 & 5 = ? - All are lives coming from power leads that run to a junction box in the airing cupboard where I have 1 pump, a mid-position...
Hello all - hoping you can help as I am totally ignorant in these matters :?
I have a Thorn Olympic 38/50B with a Smith Controls SL650/2 timer.
The boiler works fine, but the timer is one of those rotary switch-flicky jobs and has developed a tendancy to get stuck at 5.30am (when the...