help with combi boiler

Loughton_Lass

I'm hoping someone can help me with our boiler woes!

We have a Valent turbomax 2821E combi boiler, which is about 10 years old and has been really great so far. Recently though we've started to notice some problems with the heating, which isn't really working.

The radiators are lukewarm at best and the problem seems to be getting worse. It started a few weeks ago and we persuaded ourselves that it was just getting cold and turned up the boiler heating control. Hubbie tried re-balancing the rad valves, but that didn't make any difference.

When the heating first comes on the boiler fires up and works for a minute or so, but then stops.

Today the rads hardly seem to be working at all, although the water side is still fine. At least I can still have a hot shower!

Can anyone give us any suggestions, or should we call out a plumber?

mantis999

I think that something happened inside the boiler,so best way to get
plumbing engineer.probably does not work as it should some boiler parts.
this is my opinion:rotfl:

C_Mababejive

http://www.google.co.uk/url?sa=t&rct=j&q=Vaillant+turbomax+282%2F1E&source=web&cd=1&ved=0CDUQFjAA&url=http%3A%2F%2Fwww.vaillant.co.uk%2Fstepone2%2Fdata%2Fdownloads%2Fce%2F44%2F00%2Fturbomax.pdf&ei=D4TgUI7UI4aq0AXxnoDABQ&usg=AFQjCNHPlR9tqvUdos6vQ5lmmBPd3--YhQ&bvm=bv.1355534169,d.d2k&cad=rja


When the heating is on,can you observe that the boiler is actually firing i.e burning gas...??

Loughton_Lass

No, I don't think it comes on much. It fires up for a minute or so when the heating comes on (with the timer etc), then goes out. When it's on for that minute you can see the flames through the spy hole thing, but then they go out quite quickly.

It comes on if we draw hot water, so if you run a bath etc you can see the flames for ages, but it doesn't do much on heating only.

Thanks.

booty40uk

You will need to get an RGI out to look at it. Sounds like a ntc or circulation problem.

Loughton_Lass

Oh dear, that sounds a bit serious and not a good start to the New Year.

I'll see if I can get someone to come out tomorrow. Eeek

Thanks.

C_Mababejive

I wonder if the diverter valve is returning to its rest position post HW demand..either way it needs specialist TLC. Luckily its not a condensing combi so simpler and hopefully cheaper to fix.