Heating stuck on and won't turn off - how to fix?

[jtsplumbing]

Just another thought ! is the 3 port valve the right way round ??

 

[coursemyhorse]

I don't know how to check if it is the right way around.
I pulled the actuator head back from the wall as hard as I could to see down the side of it a tiny bit and I can see there is already a groove cut into the wall for supposedly the above mentioned reason of the lever arm being able to move freely. I can't really see as it's very tight and hard to move.
There were some comments in my old thread a year or two ago I made on here when I posted pictures, that the general plumbing of the airing cupboard was not brilliant and that something was the wrong side of the pump, but should still work.

 

[diamondgas]

The black bit on the front ! Push it in and lift the head off!!!

You can't fit these heads the wrong way around but if they are not filly pushed home on their seat you can get the actuator missing the valve arm! Not saying that's your issue coursemyhorse but it'll eliminate it if it isn't

 

[jtsplumbing]

Have a look on valve body should be mark'd (AB Center) (A heating) (B Hot water)

 

[coursemyhorse]

Plumber is coming round next week. I basically told him I needed a new actuator head. We will see. I will let you guys know! ta

 

[Cordless]

And, just for the record, what was the problem and is it fixed?

 

[Dannyparty92]

On the picture why are there two pipes connected on the flow pipe just before the circulating pump?

 

[tamz]

From the bottom up on the flow:
Flow from boiler
Feed
Expansion
Bypass

Feed and expansion wrong way around and bypass in wrong position.
3 tees wrong out of 3. Fitted by a halfwit.

 

[SimonG]

From the bottom up on the flow:
Flow from boiler
Feed
Expansion
Bypass

Feed and expansion wrong way around and bypass in wrong position.
3 tees wrong out of 3. Fitted by a halfwit.

That's an injustice, sure it's a full wit

 

[Dotty]

Nah Simon, Tom was being generous. That boy would be hard pushed to make it as a halfwit! Probably the same cretin that throws pipes in New build houses over here.

I say throw cos what he's done definitely ain't plumbing!

 

[Dannyparty92]

Thank you for your replys . Why didnt he use an air separator? LOL the way the feed and vent is in relation to the pump wouldnt this cause the pump to be sucking air into the system?