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So I installed the nest 3rd gen this weekend thanks to the help I got from this forum, only problem I seem to be having now is that my radiators aren't coming on, even when I turn the heating up to full? The radiators themselves are on full, but turning up the thermostat doesn't seem to make...

So I'd like to upgrade my existing programmer and stat to the Nest 3rd generation I have. The wiring for each is below, I'd like to replace the LP522 with the heatlink directly, and the old thermostat with the nest stat (I know I need to alter the wiring so that it's wired into the heatlink and...