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Y-plan Issues - quick help needed please!

Solid.... No errors.

im just concentrating on the orange and Cyl wires at the moment! Maybe loose connection.

Why would there be loose connections in a newly connected installation?

Get your voltage tester and check to see what voltage you have at the Lr terminal when the control system is in such a state that there should be a demand.
 
Why would there be loose connections in a newly connected installation?

Get your voltage tester and check to see what voltage you have at the Lr terminal when the control system is in such a state that there should be a demand.


It is not newly installed. It's 70/80's wiring with new Thermostat and Control Panel. Boiler has been in a few years now.
 
On the programmer you should have number 1 connected to grey on valve and satisfied on cylinder thermostat, number 3 to cylinder thermostat common and number 4 to room thermostat common.
 
Did it work correctly before you made these changes?

Are you an electrician? Is this a job for a paying customer?
 
If you have changed the programmer and thermostat,there within lies the answer,they have HW ON/OFF,CH ON OFF which if wired incorrectly can cause you problems.
 
On the programmer you should have number 1 connected to grey on valve and satisfied on cylinder thermostat, number 3 to cylinder thermostat common and number 4 to room thermostat common.

Thats how I have it! I will check again tomorrow and PM you mate.

Cheers
 

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