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It's a brand new Drayton TRV that I had free with the radiator. I've had it off and turned it on to make sure that it does flow, I've flushed the system with every radiator but that one isolated, in even concerned that albeit by directional (or so it says online) I've got it on the wrong end of...

That's brilliant.. don't suppose your an expert on TRV's too are you? So grateful for your help mate..!

All fixed... the AAV on top is pretty old and cruddy, released the air and whoosh... just the original problem with the TRV now... but that's not a stress maker...

The831Bunny... you sir are a genius.... I span the pump shaft, and it began working but didn't ignite still... so, I turned the boiler off and heard the water bubbling again in the boiler..... so, (rightly or wrongly) with the boiler running I purged the air from the AAV and with a whoosh, a...

Thankyou so much!! I shall go and try that now... Will there be an exodus of water when I remove the large chrome plug?

So, the problems just keep coming.. I've refilled the system, bled all the air... gone to turn the boiler on and nothing's happening. I'm guessing there is power getting to it as the led in the switch is on, but when I set the boiler to CH on nothing happens. I get a slight hum coming from the...

Managed to get some pliers on it, it looked plastic.... but got it to spin and did have a small amount of air, then water. Just to confirm it's ontop of a small tank in the right hand side at the back of the boiler. Have just drained it all down again to get rid of cleaner so will refill and...

The air vent cap is as stiff as a board.. granted it's pretty mucked up round the back but it's not pushing at all... will I be ok to put some penetrating oil on it first before I try and loosen it.

Im kind of giving up all hope now as Ive just gone up and turned the hot water on and nothing is starting now. I can hear a click from the boiler but nothing is starting up now.. :(

http://www.diynot.com/diy/threads/boiler-not-firing-up-after-refill-help-please.468912/

Hi there.. Further to my previous thread, (I don't know how to delete it, sorry). I am firing the boiler up and although it still isn't igniting I can hear the water gurgling, which I guess suggests that there is air in it... How on earth do I get that out..?? I was thinking I could attach my...

Seem to have a bit more detail..... when I turn the boiler on, albeit nor firing I can hear the water bubbling around, especially when I turn it off.... so Im assuming there is air in the boiler now.... I have tried the big screw on the pump.. Is there any where else to try?

Hmm I don't know if there is a reset button.. It seems prehistoric to ones I see these days but it works really well, normally. It didn't run while it was empty, and with regards to pressure.... Im always nervous of upping it above that red line.. Do you think Id be ok to up it? Do you know if...

Hi there.. So, after flushing my boiler system to release what appears to have been an airlock in some pipework for my new radiator...(previous threads), I have today gone and bought some Central heating cleaner. Added it via a radiator, filled the system up, bled the radiators and the pump via...

I thought thought that balancing controlled the heat of the radiators so as it was even over all the radiators. I don't think anything is flowing out through the trv side of my new radiator. Would that still be solved with balancing?

It is yep. I did fall foul to that when I fitted it. That's fully open. I've not used a trv before, have since fitted another and it's fine. Just seems weird that nothing seems to be getting through it...

It's a complete new, larger rad so I have extended the pipework but only to fit the new width, but yes the old radiator did get hot.

In addition my boiler is a combi boiler and all the other rads are working perfectly.

I've just fitted a new radiator with Drayton TRV and lockshield. I understand that the valves are bi flow and so for ease of access the TRV is on the right of the radiator. The radiator is heating up but is staying cool at the bottom and I have lifted the floorboard at the trv end and that is...

Brilliant. Thanks DP.