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glow-worm

Glowworm or glow-worm is the common name for various groups of insect larvae and adult larviform females that glow through bioluminescence. They include the European common glow-worm and other members of the Lampyridae, but bioluminescence also occurs in the families Elateridae, Phengodidae, and Rhagophthalmidae among beetles; as well as members of the genera Arachnocampa, Keroplatus, and Orfelia among keroplatid fungus gnats.

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  1. A

    Glow-worm ultracom - pcb or flow sensor?

    Good morning. We have a 10 year old Ultracom which now very frequently thinks there's a demand for hot water, even though there isn't, so the boiler kicks into that mode, and sits there heating tap water that isn't going anywhere. Sometimes this happens if a cold tap has been used or the loo...
  2. C

    URGENT Glow-worm hideaway boiler issues

    I have a old glowworn hideaway boiler which has been working perfectly until a few days ago, had a engineer come out and change the thermocouple and it now ignites and stays lit.. that is until the central heating is turned on, stays on for around 10 mins and then completely cuts off. Reset...
  3. P

    Climapro2 button battery

    Hello all. First post and would really appreciate some advice / knowledge please. I'm attempting a home DIY repair on a Climapro2 handset I have. Some corrosion/furring of the battery terminals that I've sorted, but the small button battery has also corroded and suspect is knackered. Display...
  4. G

    Glow worm boiler serial number age

    Hi I am buying a property with a flow worm flexicom 24 cx boiler. I am trying to find out age of boiler or installation date. I have the serial number. Is there a way I can check this pls
    • Girl85
    • Thread
    • america boiler glow glow worm glow-worm number usa worm
    • Replies: 7
    • Forum: USA
  5. M

    Advice on Glow-worm

    Hello all! Can I please have some professional opinion on our ongoing problems with our Glow-worm Fuelsaver mk11. Now I know the simplist answer will be "replace the boiler" but during these uncertain times it's not an option. We have a BG homecare policy and have now had 4 engineers working on...
    • mentalhibby
    • Thread
    • advice america glow-worm usa
    • Replies: 0
    • Forum: USA
  6. J

    Glow-worm fuel saver mk2 hot water but no heating

    Hi all, We have an old Glow-worm Fuelsaver MK2 boiler as part of our gravity fed system. The boiler had been making a loud banging sound for a while. That sound has suddenly stopped, but now we seem to have no heating. The pilot light is still on as usual and we have hot water. However, despite...
  7. L

    Needing some help - no plumbing knowledge

    Hi - I'm new here. I have a Glow-worm flexicom hx boiler that had a f25 error code and isn't heating my water. I have bled all the radiators, then reset the boiler and now have a f22 code. Can anyone offer advice please. Thanks.
    • Les
    • Thread
    • america boiler central heating system code error error code glow-worm help knowledge needing plumbing radiators usa water
    • Replies: 4
    • Forum: USA
  8. Steve weightman

    Glow worm protherm 40/50 ci behaving weird

    Hi folks a letting agency boiler I've been asked to diagnose and repair the first visit the fans on but no sparking first thought was aps and the orange light on the pcb was also telling me so it's the pcb with the two fuse. So new aps fitted now I have the orange light to say aps proved and...
  9. moonlight

    glow worm flexicom 30cx

    Customer rang. Told me she had someone out, they have changed the flat plate heat exchanger. Still same problem with water runs hot for a few minutes, then runs cool. Boiler is still running. Then they have told her its because she needs a new pump and quotes her for one. Then they sent another...
  10. L

    Glow worm 24ci not working

    Hi there, we have a glow worn 24ci boiler which won't kick in, keeps flashing 0.4 with a red light above. Have tried to Google it to see how to re-pressurise but nothing has helped. Does anyone have any suggestions please?
  11. B

    22 fault code, Glow worm

    Got a Glow worm 18 flexicom with f22 fault. I've replaced both flow & return thermistors, bleed all rads of air, removed the pump and cleaned it, it all seems fine and pump is strong, checked wiring continuity and that's all good. Boiler is only 6 years old and Glow worm have said it sounds like...
  12. Inverness

    Glow worm betcom 4. Making noises

    hi guys, replaced a combi swap a few months ago and customer has contacted me, saying sometimes when they open kitchen cold tap the boiler makes a noise but doesn't fire up? I connected hot and cold correct way if your asking lol. The mains pressure is very high could this be causing problems...
  13. P

    Glow-worm 24kw Betacom 4

    Good evening What would be the gas rate on max Ch and Max Hw Been set question but can't find the info Thanks
  14. B

    Glow worm ultimate pcb

    went out to a customer and found the pub burnt out. It’s an old ultimate 30ff. Found the replacement part number via glow worm archive and contacted Wolseley to get a price. There does however seem to be a discrepancy. Glow worms part number is for a two fuse pcb, wolsely don’t list the...
  15. S

    Glow Worm Ultimate boiler no ignition and no pilot...

    Hi, I came in tonight and turned the central heating up. Nothing happened. It was working fine this morning. There is no pilot light and the igniter is not firing. Power is getting to the controls, as I can here a click as I turn the power on, after turning it off from the switch. I am going to...
  16. R

    Valliant Glow Worm Heater Exchange - Pro Therm 80e

    Hi Everyone, Does anyone know if the heater exchange (0020025264) from a Valliant Glow Worm will fit into a Pro Therm 80e? Thanks Rob
  17. R

    Connecting nest to Glow-worm ultimate 3

    can anyone help with the wiring from a nest co troller to Glow-worm ultimate 3 please??
  18. C

    Glow worm Boiler advice

    Hello all, new member, first post.... After some advice on a Glow Worm Flexicom 30hx boiler before I throw more money at it. It is having troubles lighting up when the temperature is below about 5°c. It tries to start as normal, fan runs and you hear a woompf as the gas ignites but it then...
  19. Inverness

    Space saving frame for a betcom 4 glow worm

    Do you know if you can get a space spacing frame to project the boiler further out than hard to the wall.
  20. Frank Nicklin

    Swapping a Glow-worm 18hxi for a combo boiler

    I'm re-modelling my bathroom to remove the hot water cylinder. I currently have a single pipe 'S' Plan system running on gravity feed hot water and pumped CH. I installed the CH system back in 1986 when money was tight. The original Glow-Worm boiler was replaced about 8 years ago with a...
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