Central Heating System will not refill

[DaveyCB]

Help !

I've removed 2 radiators (by individually draining them) to do some decorating. 1 on the ground floor, 1 on the first floor. My central heating was working fine after this.

I've now refitted the radiators. The one on the ground floor has filled taking the water from the radiators on the 1st floor.

The heating now wont work - the pump comes on but the boiler doesn't light.

Now when i open the blead valvue on any of the radiators nothing happens - no air or warter comes out making me think the heating system is not refilling with water.

There are no obvious valves to refill the system, I've checked the tanks in the loft and they are both full with nothing blocking where the pipes connect.

help ? any ideas to get my system back full of water and heating working ?

 

[hi-spec plumbing heating]

what boiler is it ?

 

[DaveyCB]

Hi,

it is a Potterton Netaheat

Thanks!

 

[hi-spec plumbing heating]

have you tried resetting it

 

[clf-gas]

how will a reset get water into the system

Sounds like the either the 15mm feed is block where it tee,s into the 22mm or an airlock.

 

[DaveyCB]

I actually don't know how to reset it, i have checked the manual and it doesn't mention how to do this. I have tried turning off the electrucity- shoulf this cause it to reset?

 

[hi-spec plumbing heating]

no one said about getting the water into the system.

thats another problem, the boiler should still fire up. thats probably why it's cut out due to no water and overheat stat tripped

 

[hi-spec plumbing heating]

feel under boiler panel there is a hole with a button in push it.

 

[DaveyCB]

thanks both,

any ideas on un-blocking it ? or is it a case of replacing that pipe ?

 

[hi-spec plumbing heating]

you can stick a hose down it and use mains pressure to move it.
or if it's a solid blockage renew that section of pipe.

 

[clf-gas]

no one said about getting the water into the system.

thats another problem, the boiler should still fire up. thats probably why it's cut out due to no water and overheat stat tripped

I agree.

no one said about getting the water into the system.

urm!

I've now refitted the radiators. The one on the ground floor has filled taking the water from the radiators on the 1st floor.

The heating now wont work - the pump comes on but the boiler doesn't light.

Now when i open the blead valvue on any of the radiators nothing happens - no air or warter comes out making me think the heating system is not refilling with water.

There are no obvious valves to refill the system, I've checked the tanks in the loft and they are both full with nothing blocking where the pipes connect.

oh and then

help ? any ideas to get my system back full of water and heating working ?

Once he has filled the system then the boiler can be sorted

 

[gas4you]

Cold feed blocked whereit tees into heating system

 

[giblets]

feel under boiler panel there is a hole with a button in push it.

If the Netaheat Profile - yes. If the original Netaheat - no.

As has been said - blocked cold feed where it joins into the system pipework.

 

[DaveyCB]

button found its a netaheat profile, now all i've got to do is unblock the cold feed, thanks for all the help guys

 

[gasandoilman]

If you dont want to cut the pipe and unblock it why not put a hose on your drain off and fill

Have someone in loft to make sure you dont over fill