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if the flame sim is there then the room stat is calling for heat pitty you didnt have a multi meter with you as red should be live (when power is on) and black is back to the boiler for call (eg turn on) i think
 
What is the worst it can do if it doesn't work? Could it blow the fuse?
 
Should it matter if the red sleeving is biting down on the screw rather than the copper wire in the connecter block on the Drayton programmer?
 
the first time you did it, it should be like this

image1(1).JPG
 
Yeah shaun I've done it that way. From your experience What could be the problem?
 
Yeah shaun I've done it that way. From your experience What could be the problem?

sorry to say hard to tell with out a multi meter if you have voltage in red one (230-250v) to earth could be the stat but if you dont have voltage on red or black could be further back, does it work with old stat back on ?

you didnt do them live did you?
 
Yeah the old stat worked fine no problems. The battery's from the Drayton are roasting hot?
 
No I turned the power off from the consumer unit.
 
Ok. What type of programmer thermostat would you recommend ?
Thank for all your help.
 

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