Glow worm 24 cxi - filling loop not working?

camdbug · 26 Sep 2007

The pressure on this had dropped slightly anyway (to just under 1.0 bar), and after the summer we used the system with no problems. However today we bled the radiators and the pressure dropped to < 0.7 bar, red light came on and boiler cut out.

However, it should be as simple as turning the blue knob (instructions stuck to front of boiler!) and this will let water from the mains supply into the CH circuit and bring the pressure up again. Nothing happens. Does this indicate the valve/filling loop is screwed?

Has anyone else had this issue or know of a resolution? The filling loop itself seems to cost only £14 while a call out is looking significantly more expensive - I'll probably call someone tomorrow either way (no hot water

) but it would be great if I was just missing something really obvious

nickso · 26 Sep 2007

are you handy with tools/water?

if so a fairly simple temporary solution is at hand. the filling loop valve is probably broken inside. if you shut off the mains water to the house and leave a hot water tap open and remove the loop tap you can push the valve open and refill the boiler until you get a replacement. once you have finished filling you turn it closed as normal.

you will defo need a new loop tap though.

Gasguru · 26 Sep 2007

Or get your cycle pump on the tyre valve behind the boiler at the top. Only give it a dozen pumps - might just be enough to get it going.

John M · 26 Sep 2007

Enough to drive ya "Loopy"

Bum Bum !

camdbug · 26 Sep 2007

nickso said:
are you handy with tools/water?

if so a fairly simple temporary solution is at hand. the filling loop valve is probably broken inside. if you shut off the mains water to the house and leave a hot water tap open and remove the loop tap you can push the valve open and refill the boiler until you get a replacement. once you have finished filling you turn it closed as normal.

you will defo need a new loop tap though.

That ties in with my suspicions (does the poorly documented item at the following link look appropriate? http://www.heatandplumb.com/acatalog/Filling_Loop.html#aHP_2dLOOP1 - linked from previous page on 24cxi; http://www.heatandplumb.com/acatalog/Glow_Worm_24_CXI_Heat_Pack.html)

Yes, am handy with water and have 3 1970's VWs, so pretty handy with tools

My understanding of the loop (and looking through docs at glowworm site) is that the valve feeds directly from mains, so if I switch off mains and remove valve (just done this, and seems straightforward), how do I get water into the system - or am I required to hijack the garden hose and jam that on in place of the tap once I've jammed it open?

nickso · 26 Sep 2007

Gasguru said:
Or get your cycle pump on the tyre valve behind the boiler at the top. Only give it a dozen pumps - might just be enough to get it going.

what he said is worth a go first

camdbug · 26 Sep 2007

John M said:
Enough to drive ya "Loopy"

Bum Bum !

LMAO - Now my cold girlfriend has come down to see what I'm laughing about!

nickso · 26 Sep 2007

camdbug said:
nickso said:

are you handy with tools/water?

if so a fairly simple temporary solution is at hand. the filling loop valve is probably broken inside. if you shut off the mains water to the house and leave a hot water tap open and remove the loop tap you can push the valve open and refill the boiler until you get a replacement. once you have finished filling you turn it closed as normal.

you will defo need a new loop tap though.

Click to expand...

That ties in with my suspicions (does the poorly documented item at the following link look appropriate? http://www.heatandplumb.com/acatalog/Filling_Loop.html#aHP_2dLOOP1 - linked from previous page on 24cxi; http://www.heatandplumb.com/acatalog/Glow_Worm_24_CXI_Heat_Pack.html)

Yes, am handy with water and have 3 1970's VWs, so pretty handy with tools My understanding of the loop (and looking through docs at glowworm site) is that the valve feeds directly from mains, so if I switch off mains and remove valve (just done this, and seems straightforward), how do I get water into the system - or am I required to hijack the garden hose and jam that on in place of the tap once I've jammed it open?

no, look in the blue handled valve you have removed. you will see a small white bit in the centre, unscrew the valve a bit and push the white bit down. replace the valve and turn on mains. it should fill. the turn off the blue handled valve as normal.

camdbug · 26 Sep 2007

nickso said:
Gasguru said:

Or get your cycle pump on the tyre valve behind the boiler at the top. Only give it a dozen pumps - might just be enough to get it going.

Click to expand...

what he said is worth a go first

You're all just too fast! Can't keep up

Shouldn't you all be in bed?

camdbug · 26 Sep 2007

Ok, will try the valve thing now before I head to bed, and I'll dig out the bike pump tomorrow if I have no luck tonight and give that a try (otherwise I have to go out in the cold, dark, wet outsideness!)

Back in a few minutes!

John M · 26 Sep 2007

Here

£7.69

camdbug · 26 Sep 2007

WooHoo!!!

You are all genii (plural of genius? - either that or you all live in bottles

)

Took a bit of fiddling (tap popped out again as I had not screwed it in far enough - so I'm a bit damp as a result). Interestingly a tiny circular rubber grommet came out along with a tiny little plastic nubble (yes, that's a real word - at least it is in my house/head/world!!)

Anyway, second attempt worked better. Have ensured that tap seems to be stopping water when closed again via spanner (no further pressure rise), so we have heat and hot water again thanks to you!

Any thoughts on the filling loop mentioned in my earlier links will be appreciated as replacing that lies easily within my capabilities and does not involve scary gas type burny things which I ain't going near!

Now, time for me to go and warm up my chilly missus!

John M · 26 Sep 2007

camdbug said:
Now, time for me to go and warm up my chilly missus!

We charge call out for assistance with that

camdbug · 26 Sep 2007

John M said:
Here

£7.69

Valve to CH return pipe? Ain't no screwy on bits - looks like push on only on my system. But for £7.69 what's to lose?

Gasguru · 26 Sep 2007

Just replace the filling valve - the new ones have been modified.

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Glow worm 24 cxi - filling loop not working?

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