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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. CorgiDirect

    Best Prices on top, Ideal, Vaillant, Glow Worm, Heating Spares

    We have introduced a range of top heating spares from select manufacturers , Take a look here Heating Spares - CorgiDirect - https://www.corgi-direct.com/heating-spares-17866-0000
    • CorgiDirect
    • Thread
    • america central heating system glow glow worm heating ideal prices spares top usa vaillant worm
    • Replies: 0
    • Forum: USA
  2. G

    Glow worm ultracom 30cxi ignition problem

    Hi, I am new to the forum and as a new home owner have a rather basic understanding of central heating systems! We have a main house and separate annexe which are supplied by two separate thermostats (Drayton digistat 2) which both run off the glow worm boiler. Without warning our heating did...
    • Gemlew
    • Thread
    • 30cxi america glow glow worm ignition problem ultracom usa worm
    • Replies: 9
    • Forum: USA
  3. 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...
  4. C

    Has anyone fitted/ used/ replaced a Glow worm MiGo controller?

    I am looking to fit a remote controller for a customer who lives alone and works away a lot with a Glow worm boiler. I was looking at the Hive controller but see that Glow worm do their own version called MiGo. Has anyone had any experiences of this system - good or bad?
  5. phil hair

    glow worm ultracom 18hxi low flame problem

    hi, Im looking at a glow worm ultracom 18hxi that heats up to mid 70s/80s works for about 20 mins, then goes into low gas mode (one flame on display) and stays there for the rest of time. no heat in the water or rads. I have changed a 3 way valve (which was jammed with the black stuff) I then...
  6. A

    Glow worm/ valliant he

    30cxi combi. Fires up every time on ch demand. Hot water demand fails. Burner lights but doesn't sence flame and locks out. Fault code f1. Have adjusted gas pressure but no change. I feel mixture is all wrong on full power but fga and gas rate is fine. Maybe fan speed all out? On this boiler...
  7. T

    Glow Worm Ultimate 30 C hot water but no heating.

    Hi everyone, hope you're all well and hopefully someone will be able to help with a problem I have. The boiler seems to fire up with heating no problem at the start of a program but will randomly stop heating. There are no error codes on the boiler and the thermostat (Climapro 2RF) shows no...
  8. R

    Glow worm boiler temperature

    I moved into a house during the summer with a 3 year old Glow worm ultimate 35c combi boiler fitted. We had it serviced at the time. Now it's winter I'm wondering if it is working correctly. What temperature range so they normally cycle over when running the heating. I have notice initially the...
    • Richardg7vyi
    • Thread
    • america boiler glow glow worm glowworm temperature usa worm
    • Replies: 3
    • Forum: USA
  9. S

    Does a Glow worm 18sxi need a constant live

    I have a glow worm 18sxi, in having a few problems and my insurance are saying its because it doesnt have a constant live so they wont cover the problem as it was installed this way 13 years ago. So does it have to have a constant live?
    • Sunnybeach121
    • Thread
    • america constant glow glow worm live usa worm
    • Replies: 4
    • Forum: USA
  10. C

    Glow worm boiler issues

    Hi, We have a glow worm ultimate boiler (see pics) , we are new to the house but know it's around 20 years old, regularly serviced. Since last week we have had various issues: First the fuse blew, changed it. It then blew again and tripped all sockets. Changed to a 5amp. Hot water and heat...
  11. Scott_D

    Glow worm energy boilers

    Anyone fitting these? Can you pay to extend the warranty to 10 years like Vaillant?
  12. R

    Glow worm not heating rads

    Hi chaps, hope you can help I have a Glow worm Ultracom 38cxi, HW is fine but CH is not working I turned it on last week and all went well but I struggled to turn it off so I just shut down everything, it appeared to be back to normal, all lights on, all controls OK, water heats ok, today I...
  13. C

    Glow worm Boiler Ignition Fault

    I am a new poster to this forum - not a heating professional, but a householder looking for advice. please. I have a Glow worm 18hxi boiler with Magnatech installed in 2006 by a local engineer who has serviced it regularly and comprehensively every year - very competent, has done a lot of work...
  14. 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...
  15. 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...
  16. 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?
  17. 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...
  18. 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...
  19. 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...
  20. 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...
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