Motorised valve problem
- Thread starter barrowfordred
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The heating position on the programmer sends a live to the room stat.
Turning off the heating setting on the programmer shows no live to the room stat. Turning it back shows a live at the stat.
Every wire works as it should.
I have disconnected each one and re-connected them in isolation to check each individual wire.
Both valve actuators would appear to be goosed.
Further to this - and this is as it was wired, not my doing.
A red wire is connected to the room stat input (output being to white on the valve). Also connected to this wire via a terminal block is a BLACK wire from the programmer AND on the other side of the terminal block the BLUE wire to the valve actuator. Red & Black on the same terminal??????
To clarify. A black wire comes up to a junction box near the valve from the programmer. This is live when heating is on. On the end of this is a 2 ended terminal block. There are 2 wires in 1 end & blue to the valve on the other. The other wire connected to the same end as the programmer black wire is a red which supplies a live to the room stat. The other stat connection goes back upsatirs to the jucntion box were via another terminal it is connected to the white on the valve.
Tomorrow I'll try to draw up a wiring diagram on C.A.D. and PDF it.
Turning off the heating setting on the programmer shows no live to the room stat. Turning it back shows a live at the stat.
Every wire works as it should.
I have disconnected each one and re-connected them in isolation to check each individual wire.
Both valve actuators would appear to be goosed.
Further to this - and this is as it was wired, not my doing.
A red wire is connected to the room stat input (output being to white on the valve). Also connected to this wire via a terminal block is a BLACK wire from the programmer AND on the other side of the terminal block the BLUE wire to the valve actuator. Red & Black on the same terminal??????
To clarify. A black wire comes up to a junction box near the valve from the programmer. This is live when heating is on. On the end of this is a 2 ended terminal block. There are 2 wires in 1 end & blue to the valve on the other. The other wire connected to the same end as the programmer black wire is a red which supplies a live to the room stat. The other stat connection goes back upsatirs to the jucntion box were via another terminal it is connected to the white on the valve.
Tomorrow I'll try to draw up a wiring diagram on C.A.D. and PDF it.
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is that a technical term DIA 
kevplumb said:is that a technical term DIA
Very kev
Sounds like the black from the programmer should be the neutral and the red should'nt be there, but there again He's convusing me now/
The BLUE from the valve is neutral
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I don't have what can be determined as a deffinate neutral in the junction box.doitall said:
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Success (in a way) I connected the blue to a definate neutral ( on the end of an extension lead) and the white as it is i.e output from the room stat. Result valve moves. So the connection in the junction box isn't neutral!!!!!!! So much for living in a show house. Beats me how it ever worked????????
I'll try to bottom this now I know the valve works. Thanks for all your help and patience.
Now - how do I check for neutral
I'll try to bottom this now I know the valve works. Thanks for all your help and patience.
Now - how do I check for neutral
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