Hot water problem

[Cliveahart]

Hi I have been trying to get my hot water working on a honeywell Y system. I changed the valve as the gearbox was a bit clunky, I also changed the tank stat. Problem is that heating works ok but can not get hot water to click in.
I need some info on the programer. With both hot water and heating off I have a live on terminal 1 on the programer, which means the grey on the valve is also live. When I select heating it works ok and the white becomes live as well.
When I switch off heating and select hot water the grey remains live but nothing else is live and the hot water will not work.
Question is.
1) With both water and heating off should I have a live on programer terminal 1, 3, 4,?
2) With heating only on, Which terminal should be live ?
3) With hot water only on, Which terminal should be live ?
4) With both hot water and heating on Which terminals should be live ?
One other thing I noticed was that if I select water and heating then switch off, The motor will not let the spring return to rest and I have to turn power off at isolation switch to allow it to return. I hope that is enough info to allow someone to help me. Thank you. Clive

 

[RSD]

What programmer is it?

 

[secret squirrel]

Seems like you've changed everything else. Therefore will probably be the timer, get a multi metre have a look in the wiring unit and make sure you've got power from the timer when you turn the hot water on.

If you haven't then make sure you buy the same timer and swap the old for the new. You could've saved yourself quite a bit of money if you used a multimetre to start with.

 

[PlumbBobBob]

welcome along

 

[Cliveahart]

Thank you for your input. I have found the Y plan diagram and the timer one as well. I was right the No.1 terminal should not be live when the hot water is turned on. So your right as well Programer is faulty. Thanks again. Clive