rayburn rads not heating up

[QPS]

Hi need a little help on this if anyone can shed some light

Moved into a house where a rayburn powers the (5) radiators but they only seem ho reach 45 deg is this right or is something wrong? The rayburn itself is too hot too touch so its not a heat issue.

any help would be muchly appreciated

Quentin

 

[Best]

Obviously not right. Assume it is a Rayburn range cooker? It could be anything from the Rayburn needing serviced, to the water pump or dirt in system. The Rayburn, itself, will be very hot even if the stat on it is too low for rads.

 

[QPS]

cheers for that figured it wasn't quite right
il get it looked into

many thanks
Quentin

 

[Dannypipe]

Is it pumped or gravity?

Have you bled the rads? Have you looked for any thumb vents on the system? Check the water level in the header tank.

Check the temp' of the flow and return pipework from the Rayburn, are they both hot, or is one much cooler?

 

[QPS]

the water pump gets alot hotter then the rads too, that hits around 50-55 deg could that be something?
just finished a plumbing course at college and up for as much info as poss thats all hope u dont mind

 

[QPS]

checked all pipe work, only seems to hit around 30-35 but rads are all heating evenly bar 1 in the bathroom but that seems to be seperate from the other rads (and very old), will check header tank tho cheers

 

[Dannypipe]

Its seperate from the others, but surely on a small 5 rad system, it is part of that very same system. So it is part of the probem.

The fact that the pump is much hotter than the pipework is often a good indication that your pump is either running dry (has a bubble of air in it) or the bearings are gone and it needs replacing.

If the pump is fitted badly, you won't ever get the bubble of air out, even if you do bleed it. (If it is tipped slightly forwards for example).

Check the pump out first. I have just given some advice on pumps.

As you are inexperienced, do not bother with the electrical tests I have described.

I will copy and paste it in below.

 

[Dannypipe]

On second thoughts, I think tinkering with a pump is probably best left to a plumber. I don't want an accident to be my fault in any way.

Just open the bleed vent to the pump, check that it is spinning, I don't want to get much more in depth with regards to this. If it is spinning slowly, or you can easily stop it with your screwdriver, then it is time to replace the pump. You may find your best solution is to get a heating engineer in though!!

 

[QPS]

That's great advise really helpful cheers

 

[Dannypipe]

No worries. Best of luck with it.