Search results

Progress .....I used the first wiring diagram you posted (colour one) to work out what should be connected where. I then traced all wires from the Potterton ep2002 to the wiring center and to the room stat and labelled them. I then worked out which wire SHOULD have been in terminal 1 (HWOFF) and...

Johntheo .... thanks for the test suggestions. With the Potterton installed, am getting some strange results..... Per your test - CH & HW on on controller, HW stat NOT calling, CH stat calling, bolier fires Y valve in mid position. Then turn off HW at controller, CH stat still calling, boiler...

Yes it has 3 pipes to the valve. I fitted it last week...old actuator had died and the old valve was a bit stiff.

I guess I can check for Y valve operation later by removing the actuator and checking it's movement with both CH and HW on. I'm pretty sure it is....with both on the HW stat does not trigger boiler off when temp reached and room status still calling for heat.

Here is a picture of the Y valve...

Correct - it id s mid position valve - I can have both CH & HW running together.

Thanks ... I can confirm that with the Potterton I can run the HW and CH separately. The diagram is a little overwhelming ... I'm trying to work it out. So maybe I should try and trace the connection between the grey wire in my junction box (which comes from Y valve) down to the Potterton back...

Hi, first post on here. I read some previous posts before buying TADO V3+ CH & HW control kit with the intention of replacing my old Potterton 2002. However .... upon inspection, the guidance given in other threads doesn't appear to line up to what I have ..... in other threads the...