Need help no hot water or heating

[spinner]

I have old type two pipe system and decided to put on new thermostatic valves on I closed all valves and emptied system after I replaced thermostatic and shut of valves I opened water valves I heard water filling up . Later I turned on heating after 10 min it reached 75 Celsius an d gone off rads and pipes are cold hot water only warm slightly. Where electric three way valve is them pipes are hot but the one near oil heater is hottest. After it just warm. The bleeding valves them big ones left one is hot as hell but no air seems coming out. I opened air bleed valves on radiator a little air came out but no water everything is just dead . Could you help me .

 

[GasmanxxxR1]

You have an airlock, to be honest if you dont know what your doing you may have to call a professional. Try getting the pump to spin and open and close rads around the system. Is it Tank fed? try blowing down the feed pipe with a bit of hose.

 

[SimonG]

Drain it down and refill from the bottom of the system working up over. Make sure you have any motorised valves set open. Don't forget the inhibitor.

Or call somebody in. But 10 out of 10 for trying.

 

[spinner]

You have an airlock, to be honest if you dont know what your doing you may have to call a professional. Try getting the pump to spin and open and close rads around the system. Is it Tank fed? try blowing down the feed pipe with a bit of hose.

I had a look and it seems no water in radiators or heating unit . it seems water just cant get in radiators . I tried empty water tank upstairs and plug in garden hose . I fired up but water start coming from overflow it was hot so it seems it is coming from boiler cause I heated it up with immersion heater. I close downstairs valve . and now water coming back it seems it not going nowhere

 

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View attachment 18835

 

[SimonG]

Could be a blocked feed. Get a magnet and stick it onto the copper pipework where the cold feed connects into your heating system. If it sticks then that's your problem.

 

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[Vee]

May have blocked cold feed provided it's vented system if not refilling not just air lock. Time to get some help...

 

[townfanjon]

Yep , I think simon may have the answer

 

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[Ermintrude]

Blocked feed!

 

[GasmanxxxR1]

Spinner - can you give us a photo of how the cold feed from the header tank supplying the system is teed into the pipe work. I guess its gonna be above the the pump from your photos

 

[GasmanxxxR1]

Is the header tank full of water?

 

[LPC]

Spinner - Get your wallet out!

 

[mike-c]

If all your rads are drop fed from the ceiling then you will probably have to try to draw the water through each of those drain valves under the radiators. You will also have to try and close off the radiator valves as you go to try and get the water to flow through each pipe.
Drop fed rads can be a pain in the rear at times.
Good luck and keep us posted.