help please

**braalterr903** · 07-Dec-10, 18:38

hi can anyone help some off my radiators are cold at bottom what do this.

**little miss breezy breeks** · 07-Dec-10, 18:44

Have you tried bleeding them?

**annemarie482** · 07-Dec-10, 18:44

they probably need bled as it sounds like trapped air, you can buy a wee gadget from homebase to do it. its easy.

**andyw** · 07-Dec-10, 19:30

Hi Sounds like you have a sludge build up in bottom that water won`t go arround , so only goes round top of radiator. Take of and pressure wash out each rad thats cold at bottom and refit

**unicorn** · 07-Dec-10, 19:36

Try bleeding them first.

**Liz** · 07-Dec-10, 19:58

Def agree that just bleeding them should fix this.

**Dadie** · 07-Dec-10, 21:16

Open the valves more!
You dont have enough water going round the system.
The pressure might be low too!

**joe** · 07-Dec-10, 22:32

Hi go to this site SimplifyDIY.com and enter Bleeding radiators and they tell how you how to do it step by step

**Dadie** · 07-Dec-10, 22:42

Trapped air makes them cold at the top...
Bleeding them wont help if they are cold at the bottom!

**braalterr903** · 08-Dec-10, 09:49

i have bleeders on all the ones that have cold bits

**Dadie** · 08-Dec-10, 10:19

Open the valves at the bottom fully so you get more of a flow of water round the system!
You know the little knobs with arrows on them or a big one with numbers on.

**muffin** · 08-Dec-10, 11:19

If you have air trapped a simple solution which worked on one of ours is to turn all the radiators off except one which is not getting hot, then turn that radiator up to maximum, it worked for us in a few seconds.