2 Cold radiators

[pnburdon]

Just moved house and radiators in the kids bedrooms are cold. 8mm pipes running to valaves are cold.

Have read other threads - most focus on attempting to release seized TRV. The valves on mine are Pegler Terriers - have tried hitting them with hammer but no change. Have tried forcing heat through by having all other rads off but also no luck. Have tried bleeding them but they are full of cold water.

Any ideas? Winter is coming and the nippers are getting nippy!


Thanks

 

[gigz]

Could be a number of things, sludge, pump, valves, balancing and to make things worse as you've just moved in you don't know if they ever worked. First don't hit the trv with a hammer (they don't like it) take the trv head off and use pliers to push down or pull up (add a bit wd40) if they are free leave the heads off and turn off the other rads. If that doesn't work turn both valves off and disconnect from the rad and open valve into a bucket (use plenty of towels). Try this first. By the way what type of heating do you have ?

 

[pnburdon]

Gas combi boiler

 

[pnburdon]

Want to do this this weekend. Any more advice? the valves are Pegler Terrier but they are old - not TRV, just open/close at both ends.

 

[kevplumb]

are they open at both ends

you could try turning the hot rads off

 

[pnburdon]

Yes they are open at both ends.

I have tried turning all the hot rads off and nothing. Will try again though. How quickly should I expect to see something/nothing?

 

[kevplumb]

quick enough

easiest way to test is close valves remove rad

then open valves one at a time over a bucket and see what comes out

 

[pnburdon]

thats looking like the best option.

If I ca get hot water through the valves then it must be some kind of blockage in the radiator - how do I clear?

 

[kevplumb]

garden hose and percussive intervention with a rubber mallet

 

[pnburdon]

Think I can manage that!

thanks for your help - fingers crossed!