Hi everyone,
Real quick one (Hopefully) I'm in the middle of renovating a house, and I'm trying to sort the central heating.
It's a Worcester Bosch 24ri, and I've noticed when I'm working round the house, the boiler is constantly cutting in all the time. The pump seems to be running all the time also. Anyway I started a little investigative work today after reading up on the valves and realised the orange wire turns the boiler on (I know it's also linked into the HW demand also)
I turned the programmer to off (both HW and CH) and there appears to be a residual voltage of about 50 to 80VAC on the orange wire. This voltage is obviously enough to keep the relay/input to the boiler pulled in and the boiler firing all the time. If I cut the power to everything, then power back up, this voltage sits at 0v (the spring has pulled the valve back when I do this)
So, I assume this residual voltage on the orange wire is keeping the boiler going. Is this normal for the V4073A or are the electronics on the head knackered? Should I replace it with something other than a Honeywell? (A search seemed to reveal a Siemens valve doesn't suffer with this voltage issue?)
Thanks alll
Ben
Real quick one (Hopefully) I'm in the middle of renovating a house, and I'm trying to sort the central heating.
It's a Worcester Bosch 24ri, and I've noticed when I'm working round the house, the boiler is constantly cutting in all the time. The pump seems to be running all the time also. Anyway I started a little investigative work today after reading up on the valves and realised the orange wire turns the boiler on (I know it's also linked into the HW demand also)
I turned the programmer to off (both HW and CH) and there appears to be a residual voltage of about 50 to 80VAC on the orange wire. This voltage is obviously enough to keep the relay/input to the boiler pulled in and the boiler firing all the time. If I cut the power to everything, then power back up, this voltage sits at 0v (the spring has pulled the valve back when I do this)
So, I assume this residual voltage on the orange wire is keeping the boiler going. Is this normal for the V4073A or are the electronics on the head knackered? Should I replace it with something other than a Honeywell? (A search seemed to reveal a Siemens valve doesn't suffer with this voltage issue?)
Thanks alll
Ben