Boiler keeps on boiling water even heating is switched off

[luckyvictor]

Thanks, now i know what to expect to see. will try it sometimes next week.

 

[ShaunCorbs]

Have you tested if theres 240 on the brown for the 2 port valve in the wiring centre ?

With nothing calling eg heat and hot water timers off

You won’t get the head off as there’s not enough space to lift it out need to rotate the valve so the head sticks out front time for a plumber I would say

 

[Deleted member 120897]

You won’t get the head off as there’s not enough space to lift it out need to rotate the valve so the head sticks out front time for a plumber I would say

Spoilsport!

 

[luckyvictor]

Now something I don't understand, I thought the system is actually running, but even though I boosted hot water, create demand, the boiler is not on, is always 00, I have only removed the faulty orange wire from WC, and touched absolutely nothing regarding HW, and I did see the boiler ignited yesterday for once (didn't check after), the time that I thought the system had no power.

So what is my problem now ...

When I press restart from the boiler, it doesn't seem to go through the usual start up sequence, but stays 00 all time...

 

[Deleted member 120897]

Are thermostat’s up? Could be already satisfied.

 

[luckyvictor]

Are thermostat’s up? Could be already satisfied.

But I asked for hot water as well, shouldnt I see it fires for a second at least?

And the start up sequence doesn't seem to do anything.

 

[John.g]

If neither the roomstat or the cylinder stat is calling for water then boiler wont start, either boost the HW and turn the cylinder stat (the one attached to the cylinder) up to start the boiler or just hold your trusty orange wire up against the common terminal again to (see) the boiler firing.

 

[Deleted member 120897]

But I asked for hot water as well, shouldnt I see it fires for a second at least?

And the start up sequence doesn't seem to do anything.

Not if the cylinder is already satisfied, and you have it set low at 45 degrees.