I have recently purchased a Silvia and have fitted a PID using directions found on the web. It is a dual setpoint controller and I have also bought a relay to control the steam temperature. Unfortunately I do not fully understand the wiring diagram on Randys website and after a couple of attempts at following it either have the relay always powered when the thermostat is on or the steam switch light contstantly illuminated! Could you please tell me which wires have to go where from the back of the steam switch to the relay and which one is disconnected? Also I do not have a green wire coming from the back of the switch but a grey one ( I assume it is the same one).
Thanks in advance,