Hi, I am replacing my old Honeywell T6360B thermostat with a digital one, TH-7281H (Not Honeywell). I am having trouble getting a power on call. The thermostat has 6 terminals and I have 3 wires (R,Y,B). Connecting red and blue to terminals 6 & 4 gets the thermostat working, lights the readout and produces 26v at terminal 5, but when it calls for heat, I get no 240v at any of the other terminals. Can anyone assist me on this problem please? Be very grateful for any help, as I've been scratching my head for hours.
Mike
Mike