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  1. T

    Accessing Flexicom 24hx installer cartridge

    I've got a Glowworm Flexicom 24hx boiler and I'm trying to unplug the installer cartridge in order to wire up the ebus connection inside. From what I've read, it should be possible to do this without opening the boiler, but there is limited access around the boiler and I'm struggling! From the...
  2. 89murph

    Glowworm Flexicom 30cx- repressurize my system

    I think the braided pipe is the one for repressurizing, but unable to find taps.
  3. TomGib

    Glow Worm Flexicom 15hx Leaking condensate

    I have a Glow Worm Flexicom 15hx that is leaking what I assume is condensate from the circled area, is this likely to be from the part of the flue that could also leak CO gas? Would the fix be as straightforward as replacing this plastic part if that is the source of the leak? Thanks!
  4. N

    Glow Worm Flexicom 30cx

    Hi all. Got the above combi which had an F25 (circulation) fault. Had new expansion vessell (was bad) then at advice of Glowworm a new diverter valve as hot water was OK but fault on heat. All has been perfect for a few weeks then back to F25. As before cutting power cures it. Always from cold...
  5. plumb_know

    glowworm flexicom 15hx

    Hi Everyone, Have customer with a glowworm flexicom 15hx which has small hole in thebottom of the plastic sump, but i cant find this part and only the whole heat engine. Is this right?? has anyone replaced just the sump on these?? Thanks
  6. M

    URGENT Glowworm Flexicom 12hx error codes.

    Hi all, I am hoping someone can help me on this one. I have a Glowworm Flexicom 12hx boiler, currently getting two different error codes (F25 and F22). Landlord believes the boiler has lost pressure and needs topping up, but I have no way of checking the boiler pressure - no dial and no on...
  7. J

    Glow worm Flexicom 30cx brief cutout

    Hi all, got the above boiler that was installed in the house back in 2009 before we moved in in 2017. The boiler works as it should, it heats up the hot water and the radiators fine and everything is balanced. however it has started to act rather strange with the heating on. The boiler will...
  8. S

    Flexicom 18hx Mode button

    The mode button on my flexicom 18hx boiler to alter the boiler heat settings is still working but has to be pressed much harder than it used to be pressed in order for the setting mode to display and allow the temperature setting to be changed. Is this likely to fail completely and what needs...
  9. I

    URGENT Glow Worm Flexicom loop valve help

    Hi All, Yesterday I drained down my water system and when I went to re-pressure the sytem the fill loop valve is stuck and will not open. I have removed the handle grey handle and managed to use a spanner to turn it but still no joy. If I remove the silver hose and open other valve there...
  10. F

    Glow Worm Flexicom Boiler Failing to Fire Up in the Morning

    We have a Glow Worm Flexicom Boiler and on colder mornings it is intermittently failing to fire up. It's set to come on at 6.20 but on particularly cold mornings it doesn't come on. When it fails it is usually showing an F43 error code, hit the reset button and it fires up fine. The boiler then...
  11. O

    glowworm flexicom 30cx boiler - over pressure & drip

    Hi, after some help with a flexicom 30 CX - 9 Years old. Pressure slowly creeps up toward 3 bar, followed by a very slow drip. Plumber has been out & done the follwing: Represurised expansion vessel Relpaced plate heat exchanger confirmed both filling loop valves are passing water. Plumber now...
  12. F

    glow worm flexicom 12hx

    at the moment i have 5 radiators 1 double and 4 single panel. they all are 40 odd years old , i want to relace all with double panel ones. would my boiler cope ok ?. it is a condenser boiler and the tank in the loft is open vented. hope some one can give me any advice. thanks.
  13. T

    GlowWorm Flexicom slow leak

    Hi, I have a Glowworm flexicom fitted in my house and like most it has an issue where the pressure sensor gets clogged up and you need to increase the pressure or you get an F9 fault. Basically, every few years it needs removing and cleaning. Recently I have notice that there is a tiny leak...
  14. T

    Leak coming from glowworm flexicom 30cx boiler

    hello, I noticed an intermittent drip coming from my glowworm flexicom boiler this morning Having taken off the front it is coming from a small hole in the front flue assembly. I will try to upload a pic This might be a stupid question but can I just check that this hole isn't supposed to be...
  15. H

    Glowworm Flexicom 30CX combination boiler Heat Exchanger problem?

    Hello, I am a female and single and at the mercy of some unsrupulouse plumbers. I have hired two and there are problems. I really need some advice. Here is the story. 1. January. Boiler failed, no power, plumber 1 attended replaced pump new part, he said was a pump but no power on pcb...
  16. S

    Glowworm Flexicom 30cx F9 fault.

    Hi guys I am new to this forum, I have a Glowworm Flexicom 30cx which keeps throwing up a F9 code, if I press the reset button it will fire back up and run quite happily all day,however it does keep locking out and going back to the F9 code, usually after it has not been in use for a while ie...
  17. C

    Glow Worm Flexicom lose water pressure and more...cost?

    I have Glow Worm Flexicom which seems to have a few issues. It keeps losing water pressure over few weeks, and until a few days ago was making a loud bang noise when switching hot water/ central heating. I have one of those water tank systems. I called a gas engineer who has a quick look and...
  18. S

    flexicom 30cx glowworm dripping from heat exchanger

    Hi - my boiler starts to drip out of the bottom right corner (when facing it) when the heating and hot water are on. It drips a little when just one is on, but with both going, it drips quite quickly. I opened it up and saw there is water dripping from the heat exchanger - bottom right...
  19. S

    Glowworm cx30 flexicom prv or expansion vessel fault

    Hi, my boiler was consistently dripping from the expansion vessel with the pressure at about 2 bars or higher with fault f1. I was told to bleed a radiator and pump air into the expansion vessel , so I did up to about 4 psi. Suddenly something gave and water gushed out of the safety pipe outside...
  20. S

    Glow worm flexicom 18hx how to fill water + no pressure gauge??!

    Hi, hopefully somebody can help me with this. The boiler in our house is a glow worm flexicom 18hx but it doesn't seem to be heating the downstairs radiators even though they've all been bled. I'm putting this down to lack of pressure and that fault code comes up on the boiler if I turn the...
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