Not all Rads getting hot

[deden56]

The plumber who piped the Y plan is going to disconnect the cylinder and put a hose through it and also cut flow and return and put water through boiler to see if either is blocked

 

[Ian10261]

Try running a magnet over the pipework near the pump, if it sticks then theres a good chance theres a blockage. Prime candidate is where the cold feed from the F & E enters the syatem or neutral point as its more commonly known.

 

[deden56]

When He disconnected the cylinder there was a little amount of scale and brown water.The coil was flushed through with fresh water until clear.He fitted a vent after the 3 way valve .Only the rads upstairs are getting hot .I have had a climpro fitted .The tap water is set for 55 degrees but I have noticed the boiler is reaching temp of 95 degrees.He disconnected some rad pipes in the cellar and there was a lot of what I think was scale .He has said I might have to change the TRV's.only the rads upstairs are getting warm.

 

[fuzzy]

Try running a magnet over the pipework near the pump, if it sticks then theres a good chance theres a blockage. Prime candidate is where the cold feed from the F & E enters the syatem or neutral point as its more commonly known.

its so so common

 

[deden56]

What is the F & E

 

[LegionellaSlave]

feed and expansion tank.

The little tank in the loft.

 

[SafeGasInstall]

Man have you still not sort this system out yet ????

 

[deden56]

When He disconnected the cylinder there was a little amount of scale and brown water.The coil was flushed through with fresh water until clear.He fitted a vent after the 3 way valve .Only the rads upstairs are getting hot .I have had a climpro fitted .The tap water is set for 55 degrees but I have noticed the boiler is reaching temp of 95 degrees.He disconnected some rad pipes in the cellar and there was a lot of what I think was scale .He has said I might have to change the TRV's.only the rads upstairs are getting warm.

any thoughts on this?

 

[unguided1]

I cant believe this has not been sorted yet either

I agree that it is not good practice to combine a single pipe system with a two pipe system even so you still expect some sort circulation. The fact that your boiler is getting up to 95 degrees is not good for the boiler so I would suggest that you should turn it down so it reaches a maximum temp of 60 degrees the fault is not on the boiler its on the system.

My suggestion for discovering what the fault is with the system is to purchase a lazer thermometer and follow the route of all the pipwork the best you can to find where the system stops circulating, so far you have spent a lot of time and money altering pipework and getting nowhere. I feel its time to go back to basics

 

[deden56]

It has been confirmed that the system is a 2 pipe system.