Recent content by Grindstone

:lol: :lol: :lol: :lol: It is It is, all boiler fires when it should goes out when it should, I'll check the switch is moving to all areas properly later on, but as it stands at the moment CH is on constant at the clock and I can fire the boiler and switch it off by increasing and...

I switched the wires round on the room stat, I suspect they were back to front, but as I did this before changing the actuater etc, I'm not sure if it did make the difference. Still didn't make everything work at the point I changed the room stat, so it was deffo the micro switch. After I...

Folks Problem is now solved! :D I worked from home today which allowed me time to tinker. The actuator head I bought was the ACL drayton MA1, which is the replacement part for the ACL Drayton 679H340-3OLO valve, although I only bought the head and not the full valve in the (mistaken)...

Got back too late tonight to ask the neigbour to come out now, the room thermostat only has two wires, I'll switch them tomorrow and see if that presents any change following the same test as before. Hopefully my neighbour will be home early armed with a multi metre and a need for a cold beer...

Ok I'll see if I can get the sparky chap around. Re the clock it wasn't re wired, straight replacement for the old clock that just slotted over the hard wired fitting. Got up this morning and the switch was at H, rads hot, but cooling, thermostat still calling, but the boiler was out, I...

Ok here we go CH HW on Cyl stat demand room stat demand switch M boiler on CH HW on Cyl stat demand room stat no demand switch M boiler on CH only Cyl stat demand room stat no demand switch H boiler off CH only Cyl stat demand room stat demand switch H boiler off HW only Cyl stat demand...

Hi All, Really appreciate the help, especially as I have had three plumbers out to this and none of them have resolved it. I'll try the tests you advise tonight Matt when I get back, I've got to say it is sounding motre and more like micro switch 2 that is at fault. I have a neighbour who...

Sorry update on the last post I was perhaps too quick, the switch is now at W boiler is on the rads are cool and the room thermostat is not demanding heat, so all good and I guess as its should be, until the room stat demands heat, and then won't turn off the demand. Does this take us back to...

Ran some hot water off and the boiler has fired again, switch is now at midway position, even though there is no demand for CH just water, the rads are staying cool, If it follows what normally happens now the house will cool until the room stat demands heat and the rads wil heat up, and...

All making sense, Got home and the house is at 24c way past what the thermostat is set to. Cut the power to the house and the valve goes to W. Power back on CH and HW on and set the thermostat to 27c, boiler did not fire. increased the stat on the HW cylinder to 70c and the switch went...

Ok, I'm in work now, but tonight I'll cut the power to the house and see if the switch then moves to W, i.e. no demand. The stat on the hot water tank is set at 70c, I can turn this down to 60, will that help? I guess what's missing here is what happens when the switch is midway, CH and HW...

Hi Ok run it all ways I think No power to the switch and it rests at H. HW on, no demand for heat at the room stat, CH off. Switch moves to W, boiler fires HW and CH on Room stat demands heat, Switch moves to M, (midway) boiler fires HW off, CH on demand for heat at room stat...

Ok, done all that, power off to everything and the valve points at H, HW on by itself, with the room stat down so there is no demand for central heating and the boiler fires, the valve has moved to W, I guess for water.

There are only two wires for the room stat (Drayton digistat *2) the heating won't come on unless there is a demand for heat from the stat and the water and heating are both on, the issue is that when the temperature on the stat is reached the heating stays on, secondary issue is that the HW...