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Not sure which circuit the valve is on as I've been concentrating on electrics - how do I know? The main electric connection is to the Pragrammer not boiler, hence no PL there when Prog is off,

The valve I have is the one on the left. There is no other valve wired to the control center and I have hunted around for another but cant find. Is it possible that historically the wrong valve has been installed? I understand that the boiler controls the over run but without any perm live...

Thanks Dan and thats what I came to. Looks like my valve is only mentioned in the s plan. So a bit confused. This all started as I am trying to work out how to get pump over run working.

Cant see the full number (could only read 404....)on the unit but looked at Honeywells site. I have 5 wires, Orange, grey, brown, blue, green/yellow. The pump (i believe) pumps up to the cylinder too. I have a pipe entry at top and bottom of cylinder and guess the pump pupms to hear and...

Dan, Also worth nothing that my V4043 has no white cable from it, if that helps

Just the one Dan.

Hi, I've recently had some problems installing a new timer switch (and had help from members of this site) but after some digging have come to the conclusion that I'm not sure which Central Heating plan I have, i.e. Y, C, W etc. I have the following:- Honeywell ST6400 timer Honeywell...

Further to my update below I have come across some other concerns and am now a bit confused. The diagram above is what came with the Programmer and I have wired accordingly and taken advice given. However, I can not get the pump to over run once the Programmer stops. After investigation I...

Wired up as discussed. However, how can I tell if pump overrun is working correctly. I was led by someone else to believe that the pump should continue to run for a minute or so when the timer switches off. At the moment when I switch off the timer (programmer) the boiler and pump also simply...

You've been a great help. Many thanks for your response and advice!

Thanks for that. Do I still need to run a switched live from terminal 8 to the D connection after I remove the link?

Thanks for the response. Yes I do have the 10 terminal box but the pump is located next to the boiler and is wired direct to the boiler connetions. I have removed the c and d link as per the ravenheat instructions. Do I simply take a switched live terminal from number 8 on the terminal box...

Wiring diagram

Hi, Ive just fitted the above programmer but I am a little confused by the wiring diagram for over run boiler. The table in the instructions state that I should connect terminal 9 to LP and terminal 8 to D for a Ravenheat Primary boiler. The issue I have is that I cannot find any reference...

Got the expert out and he sorted in 15min. Basically he blew the just off the top of the burner/pilot. I had tried previously to do this but obviously I did not clean it enough. Bit cross really as it cost me £45 in the end - not bad for 15min ehh...

Ignition lockout - what can cause that, PCB issue perhaps?

Don't know why but tonight the boiler is doing something different. The fan is on, the pilot lights (I can hear the gas valve click) but the burner will not ignite, in fact the overheat light comes on in 10 seconds?? This sounds like something simple but I am nervous about starting to buy any...