Mid position actuator newly installed issue

[Hlruk1]

oops yes.

OP is your room stat programmable?

No it’s an old one (pic below). Thanks for your help with this..

 

[Murdoch]

You need to get somebody competent with heating systems to check it out

Iirc that unit should “click” on and off - can you hear this

 

[Aquarius]

One thing that puzzles me slightly: who replaced the mid pos valve? If it was the emergency plumber - did you pay him directly or via a scheme? Either way, why not get them back? If you’re getting heating independently and hot water independently then I’d suspect the mid position valve wiring, not the room stat.

 

[Murdoch]

One thing that puzzles me slightly: who replaced the mid pos valve? If it was the emergency plumber - did you pay him directly or via a scheme? Either way, why not get them back?

hit, nail and head

maybe it’s a bit of DIY gone wrong

 

[Hlruk1]

hit, nail and head

maybe it’s a bit of DIY gone wrong

Thanks for your help it was an emergency plumber through a company and he did come back out and that is what they advised.. I will call them again and say I am not happy and want a second opinion from another plumber at their company

 

[Murdoch]

Thanks for your help it was an emergency plumber through a company and he did come back out and that is what they advised.. I will call them again and say I am not happy and want a second opinion from another plumber at their company

What did their invoice say and how did you pay them?

 

[John.g]

What about that CLICK??, is it clicking or not?.

 

[Ric2013]

To be short, if you can obtain water without heating and you can also obtain heating without water, but not the both together, then it would be really interesting to know how this can possibly be a thermostat fault. To be frank, the company could prove the fault is in the thermostat within 10 minutes if they know even basic electrics.

Please check the new valve says "mid position" and not "diverter" on it. A diverter valve will not stop in the middle and will give you heat OR hot water but not both at the same time, usually giving priority to hot water: have they fitted the wrong type?

Plus, as other have asked, can you get the room thermostat to click on and off? Without knowing that answer, it really isn't worth us speculating further.

 

[Aquarius]

Please check the new valve says "mid position" and not "diverter" on it. A diverter valve will not stop in the middle and will give you heat OR hot water but not both at the same time, usually giving priority to hot water: have they fitted the wrong type?

This is a goldmine point. Op has said it’s a MA1, that said it could be a ZA1 which is the diverter

 

[John.g]

And should (even though wrong) work if CH only selected?? not sure if this was stated above.

 

[Ric2013]

This is a goldmine point. Op has said it’s a MA1, that said it could be a ZA1 which is the diverter

I'm wondering whether the OP has looked at the old valve which was presumably replaced, or has looked at the box, or whether the OP will confirm that that is what is written on the new valve.