Cold radiators, again

PeteN · 2 Dec 2006

Open vent CH and HW system. HW ok but the rads not heating up. Started with the d'stairs ones not working. Cleaned out with product via expansion tank. Replaced pump, then 3-way valve. Seems to be air in system, so installed auto air separator to replace manual vent by cyl. Directing all flow thru one d'stairs rad doesn't help. Just moved in so no history. Help?!!!!

corgiman · 2 Dec 2006

sounds to me like you valve is not playing the game

can you see it it is usually by the cylinder and most probably has a silver head?

PeteN · 2 Dec 2006

Have changed the valve and watched it open and close. It seems to get hot on the CH side when called for and also on the HW side, but if both are called for most heat goes to the HW side. The rads don't get warm even when the feed pipe from the valve is hot. Any ideas?

doitall · 2 Dec 2006

PeteN said:
Have changed the valve and watched it open and close. It seems to get hot on the CH side when called for and also on the HW side, but if both are called for most heat goes to the HW side. The rads don't get warm even when the feed pipe from the valve is hot. Any ideas?

Sounds like you have fitted a divertor valve and not a flow share.

Whats the number on the case.

diynot

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Cold radiators, again

PeteN

corgiman

PeteN

doitall

DIYnot Local

Similar threads