Newly Added Radiator won't get hot

Tony DIY · 21 Aug 2015

45yearsagasman said:
Post a drawing of exactly how you piped it up. All this guessing is doing my head in.

I will get my crayons out and get back to you shortly.

Tony DIY · 21 Aug 2015

Happyplumber said:
Drain the system down and fit a drain off of to one of the pipes
Refill the system and bleed all rads and start theheating
Now put a hose pipe onto the drain off and.open it slightly also open the filling. Loop and get a happy medium where u are draining the water as.well as filling the system so it.stays above 1 bar and.wait till the pipes get hot .if there are any blockages or air locks you will know

I get the idea, will try this over weekend if poss.

Tony DIY · 21 Aug 2015

jedi said:
Disconnect newly installed rad.. Power up heating system, open each new valve in turn, do you get water flow from both ends?

Will try this at weekend as new rad is already disconnected.

ChrisR · 21 Aug 2015

"Bathroom rad" rings alarm bells. Sometimes they only get hot by gravity or are piped before the pump or in some other strange way. Is the new rad lower than the bathroom one?

leakydave · 22 Aug 2015

ChrisR said:
"Bathroom rad" rings alarm bells. Sometimes they only get hot by gravity or are piped before the pump or in some other strange way. Is the new rad lower than the bathroom one?

...But it's on a combi so none of those should apply.

ChrisR · 23 Aug 2015

Missed that, but it can appy in the same way where a system's been converted, except the bit about the pump position.
Big old CI rads were quite often gravity supplied.

Tony DIY · 23 Aug 2015

ChrisR said:
Missed that, but it can appy in the same way where a system's been converted, except the bit about the pump position.
Big old CI rads were quite often gravity supplied.

The new rad in the kitchen is below the bathroom rad and it used the old pipes from previous back boiler/tank.

Tony DIY · 23 Aug 2015

Going away for week so will get back to it on return, thanks for all the advice and suggestions, Tony

Tony DIY · 23 Aug 2015

45yearsagasman said:
Post a drawing of exactly how you piped it up. All this guessing is doing my head in.

Still working on my masterpeice, harder than you think.

ChrisR · 24 Aug 2015

You might have some luvly variant of this. The middle one used to get hot....... before they moved the boiler... and took pipes down off the rad...

leakydave · 24 Aug 2015

oops I thought that was the OP's drawing.

longdogs · 24 Aug 2015

leakydave said:
oops I thought that was the OP's drawing

Ha ha. So did I. Shame really because it would be glaringly obvious.

longdogs · 2 Sep 2015

I was hoping his thread might have been resolved so that I could see what the answer was.

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Newly Added Radiator won't get hot

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