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Hi, My RF thermostat fires up sends a signal to the control centre. On the control centre the light turns on and clicks but then immediately turns off again. my question is if I need to change the RT or could the problem be also with the zone valve that is connected between the RT and the boiler?

Hello, I have a honeywell zone valve V4043h that I would like to wire up with a salus room thermostat to a boiler which has a volt free terminal. The stat on it's own works perfect with the boiler however when I'm trying to hook the valve in it doesn't work. the stat has two wires that connect...