Hello all, I wonder if anyone can help with my HW problem, CH is working fine but I have no HW, the relay on the programmer clicks and red light comes on when set to HW but boiler does not fire up, the system is quite old and all the componants seem to be honeywell, there is a thermostat on the cylinder and what I think is a 2 way valve on a pipe at the side of the cylinder, If I put the CH on and manually open the valve with the little lever underneath and click it into place leaving it open then the water in the cylinder will get hot, this will only work with the CH on and will not work if only the HW is on.
Thanks for any help in advance.
Thanks for any help in advance.