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Hi My heating has simply stopped working and i wanted to know, could a faulty 3 port valve do this? The boiler is in the garage and will fire up when the froststat is turned, however turning the heating and hot water does nothing. I had a similar fault a few weeks ago, but that time it...

First-time-buyer: I have just tried what you said and it all now works!!! Cant believe it, i take it all just need to reset itself? Great stuff, thank you so much. :D

HI Richard, ....and you can still buy them!!! :shock: I installed a Salus RT300 http://www.salus-tech.com/products/thermostat/digital-thermostat/_c1_30_digital-display-room-thermostat/ Standard wiring with L and SL. As i said in earlier post it was a 3 wire install but now just two...

If it helps the programmer is a Honeywell ST699 Programmer, Here is how its wired at the moment....

Well the thermostat did work once and kicked in when the programmer said it should. It has to be a wiring issue i agree, i was just wondering how to solve it. Maybe the programmer needs to be wired up differently?

Hi I was wondering if anyone can help? I have just installed a new room thermostat as the old one stopped working. It all works fine, however it ignores the command of the boiler programmer and will simply fire the boiler whenever the temperature drops below what is set even if the...