Boiler wont ignite after power off

[gavc]

I'll give both of these a shot in the morning, thanks again all.

 

[gavc]

OK, so I've tried both suggestions, thanks Craig and cbw.

Pipe A doesn't get hot in either scenario. Also, I'm not sure of the relevance, but there's no resistance on the lever on bottom of the 3 port valve, whether the heating is on or off..

 

[Millsy 82]

Is the pipe for B getting hot? If so note what cylinder stat is on then turn down to say 20 so it isolates that.

Have you adjusted the pump speed?

You have a bypass valve is that getting hot? Turn that off.

 

[gavc]

Is the pipe for B getting hot? If so note what cylinder stat is on then turn down to say 20 so it isolates that.

Have you adjusted the pump speed?

You have a bypass valve is that getting hot? Turn that off.

Pipe B. Nope.

I did try the pump at 2 setting for a while. No difference.

What's the bypass valve?

 

[gavc]

Might be worth mentioning, when I said

"As for the motorised valve, I think it's a 3 port, but will add a pic of that too. I think that was playing up before today, as when I had hot water on, the upstairs rads were heating up."

That's no longer happening. The rads don't heat up at all now..

 

[Burger]

It would suggest to me that there’s an issue with your 3 port valve then. If it’s not something you can do yourself safely, then you may need to call an engineer in.

 

[gavc]

Thanks again, I'll get my engineer in. Appreciate all the replies.

 

[gavc]

Back again, something's bugging me..

So my replacement 3 port valve is on its way. Had a look at the steps involved and I was happy to take it on.

Howewer, I still have the initial issue.. The boiler wont ignite. I whack the room stat up to 25+, make sure there's 1bar pressure, and switch heating to on. The pump kicks in, makes a bit more noise than usual, but there's no burner light on the boiler when I look in the peep hole.

And none of the pipes off the boiler get hot.

So I'm assuming I have more issues than the 3 port valve..?

Maybe just easier to get the engineer round I guess.

 

[Brambles]

You would be better using an accredited engineer

The signal to call for heat from the boiler comes via the three port valve.

Suggest you test the boiler call for heat by using a jumper connection

 

[Aire]

If your pumps running and your boiler isn't then the fault isn't likely to be your 3 port. There's only so much we can answer on here and as you've tried the few things we've suggested I think it's time get someone in.

 

[gavc]

Yep agreed, calling him today. Appreciate the suggestions I had, so thanks all.