kitchen rad not getting warm, no air lock

[fuzzyone]

Hi guys,

The radiators in the house hasnt been used for a while, guessing almost a year. They all work, some work better than others (the better ones have a thermostate valve), the kitchen one doesnt get hot/warm at all.

I've tried releasing air hoping that was it but water came out.

The whole radiator doesnt get warm.

Would it be due to sludge? if so, how do i stop the water so I can remove it to flush? Anything i should use to clean it too? Or anything else to check before doing so?

 

[vicvapour]

One thing you can try for now as you say your system has been off for a while, sludge may have lodged itself in one of your rad valves.

Turn off all BUT the rad that is not getting warm.

Open the flow and return valves fully

Run system for a good 30 mins.

Does this help?

 

[fuzzyone]

hi, what is the return valve?

I know to open the valve fully for it to get hot.

 

[fuzzyone]

i'm guessing the return valve is open already, its the one of the left with the cap right?

below is the drain valve too.

 

[seco services]

Yes make sure both valves are open.

 

[fuzzyone]

ok, so i tried this today and the rad got very warm at the top and warm at the bottom but not hot like the some of the others.

Also I noticed that 3 of my rads downstairs now leak, tho its not dripping leaking but seeping from the actual turn valve.

Do i just replace these valves?

 

[vicvapour]

ok, so i tried this today and the rad got very warm at the top and warm at the bottom but not hot like the some of the others.

Also I noticed that 3 of my rads downstairs now leak, tho its not dripping leaking but seeping from the actual turn valve.

Do i just replace these valves?

Try venting the rad, if its not as warm at the bottom, you "may" have sludge in the system and "may" need a powerflush".

Nip the valves up A BIT that are leaking but don't over tighten though.

 

[fuzzyone]

hi,

what do you mean by nip the valves up a bit? I'm not great with these plumbing stuff

 

[vicvapour]

hi,

what do you mean by nip the valves up a bit? I'm not great with these plumbing stuff

Tighten the valves slightly, use two pairs of grips / spanners, one the hold the valve body and the other to tighten the nut.

Tighten BOTH the bottom nut and the one that enters the radatior.

 

[fuzzyone]

Hi,

the nut you can see picture is tighened but its not at fault. Water is seeping under the plastic valve turn thing and then dripping down to the nut.

 

[TonyW2]

Take the plastic turn thing off, and slightly tighten the nut underneath it.

 

[fuzzyone]

Does it just pull out?

I didnt want to try that incase I damage it.

 

[TonyW2]

OOps----I am presuming you mean the valve plastic handle!!!
If its the push fit connector DONT try to take it off.

 

[fuzzyone]

lol

yes i mean the actual plastic bit, water is seeping from under.

I guess this will be a replacement job?

 

[TonyW2]

The handle is wedged onto a square shaft.
Tightening the gland may sort it, otherwise you will need to take the valve off.
Not a dear item.

I would try removing and flushing out the problem radiator befor powerflushing.