Grundfos boiler pump getting VERY hot

Rebchappers

If you have read my previous posts, you will know that i had to have a new pump fitted for the Vaillant Ecomax Pro 18E boiler this week. The corgi guy cam on Monday and fitted it... works a treat.

I went in the airing cupboard today where the pump is located and the pump is extremely hot, almost to the point where i cant touch the plastic casing.

We have plenty of heat in the radiators, and no other problems .... the boiler is firing up brilliantly and the radiators warming up instantly, as is the hot water.

Is this something i should be worried about, or is it common for them to get hot?

Cheers

ariba10

Well it is pumping hot water.

allan673

dont worry, mines the same. also a grundfoss

27col

You would not expect to be able to hold your heating pipes with your bare hands. So why should you expect to be able to hold the pump, which is supplying them with the water which is making them hot.
If the pump was getting hot and there was no hot water, then there would be a problem. In that case, the pump would be overheating due to lack of water, as these pumps are mostly water lubricated. From your description, it sounds as if everything is fine.

david29dpo

Agreed. Try turning the boiler down to nearly nil and feel the pipe and pump then.

Rebchappers

Thank you all

I dont understand how they work, hence i come on here for help. It makes sense now it has been explained... so thanks

Barneysmom

I'm glad this board is here to turn to for help, I wouldn't have thought of that!

winner07

We have a Grundfos pump and it heats the water and radiators well - it also gets extremely hot so I suppose that's the norm and hopefully nothing is wrong.