godf
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Ta scruff.
I've just tried a new set of batteries, and it came on a bit, but only enough to register that it was low on power, and would not work. I don't understand what would make it suddenly register new batteries as being old, and a quick google has not found other people having this problem.
I've got the instructions, and opened it up. It looks like connecting the com-no wires should be easy. Do I just need to turn off the boiler to do that? Or should I turn off all power?
It's only a couple of years old! We'll try to get a more reliable one next time, ideally one that can be wired to the mains, to avoid this battery trouble.
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