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That s what I thought but I just want to be sure as I dont want to spend £50 on new programmer. I did take programmer off and turned power back on and there was no voltage at thermostat. so power is being direct by programmer.

I dont have a seperate frost stat as boiler in airing cupboard upstairs I think there is a built in one in boiler aWorcester Greenstar 18RI.

Hi I am writing this to before I go out and buy a new programmer. My progammer seems to work but when in the off position or when timer is off the boiler come on and it seems to be doing this from the room thermostat. I have tested the voltage on the thermostat and when the programmer...

Hi It looks like I have wired it the same as your picture. I have attached picture of Thermostat and programmer. I am not sure what the wiring is ment to be on programmer as it seems to be hard to installation guide for potterton stuff. It seems the programmer left to right is...

Thanks for advice I have just been checking voltages and I am not still unsure. i took red cable out but heating does not work now. Blue in 2 and yellow in 3. The 230v is coming off the red all the time even when progammer is switched off.I would have thought there...

Hi I don't if anyone can help with this one. I have just replaced a very old beige Honeywell Mechanical themostat with a shinny new Honeywell T6360B. The problem is that when the programmer (potterton EP2002) is off the heating will still come on this seems to be the thermostat...