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  1. Rob Foster

    Glowworm 100ff confirm my ideas please

    Glowworm 100ff wall hung 30kw conventional boiler. Set up in garage with correct 28mm runs to rest of system. All worked well over the years odd new bits and bobs. Recently serviced It goes through start up sequence fine style. Call on from timer in house, fan starts, pump on, starts ignition...
  2. Super Mario

    Glowworm flexicom not responding

    changed expansion vessel and put external filling loop as crappy internal one nackerd now not even showing a fault code and pressure wont go above 0.5 bar no flame nothing any ideas?
  3. K

    Loud buzzing noise coming from boiler (Glowworm ultimate 40ff)

    hi there, Recently my boiler started making a loud buzzing noise. The noise is intermittent, and sometimes goes off if I turn on the central heating or hot water. I’ve had a homeserv engineer come over for a health check and he said it was a faulty (PCB). Part no: s900847 I wanted to get...
    • Kaps86
    • Thread
    • boiler glowworm noise
    • Replies: 3
    • Forum: Boilers
  4. 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...
    • Tommo444
    • Thread
    • boiler glowworm leak
    • Replies: 6
    • Forum: Boilers
  5. A

    torque screwdrivers required for "Glowworm boilers"

    Hi guys, looking to buy new torque screwdriver set for working on new boilers. Glowworm in particular. My current driver has now rounded off after many years of use BUT I don't know its size. Not really bothered in getting sets of bits with all the other sizes as I have countless copies of...
    • AJW
    • Thread
    • boilers glowworm
    • Replies: 14
    • Forum: Boilers
  6. G

    Need to restart Glowworm 30hxi after water pressure loss

    Hi guys. The water pressure got too low and my boiler switched itself off (actually, it stopped heating and was making a whirring noise and there may have been a flashing light, I turned it off quickly). I have brought water pressure back up to about 1 bar and am attempting to reset following...
  7. G

    Glowworm 24ci , no display on interface board

    Hi , I have a glowworm 24ci and recently the lcd starting flickering between temp and pressure green led also flickering , now there's no display or led at all, had an engineer to look and he spoke to glowworm over phone and diagnosed the fault to be the interface board , £160 later and new...
  8. T

    Glowworm condensing boiler noise issue

    Hi I have had somebody in to look at a relative's GlowWorm boiler which makes an intermittent whistling/howling noise. Its 8 years old and has been serviced every year and apart from this intermittent noise it works fine. They have had somebody out to them and they have recommended a new...
  9. R

    Glowworm hideaway 80 bf

    Hi all, Before i invest in a new gas valve "thoughts please". Pilot light ok, all controls calling for heat burner wont ignite???? Boiler is a floor standing glowworm hideaway 80. Thanks in advance.
  10. J

    Glowworm 24cxi issues

    Hi I have a glowworm 24cxi combi boiler which until yesterday has been perfect. I noticed that the pressure read as 0.9bar so i added some water using the built in tap rather than connecting the hose. I know from previous times that the pressure relief valve drips when filling which i...
  11. S

    Glowworm 24 CI Central Heating Filter

    Hi, I am finding it very hard to remove the central heating filter ( part of boiler not the add on type ) which is located underneath the boiler. Is it normal for this to be so hard to remove or do I just have to pull harder,seems like its jammed solid. Any ideas or hints ? Thanks
    • simonwalk
    • Thread
    • central central heating glowworm heating
    • Replies: 2
    • Forum: Central Heating Forum
  12. 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...
    • helenmary
    • Thread
    • boiler glowworm heat
    • Replies: 4
    • Forum: Boilers
  13. woodsy

    Glowworm 24cx

    Went out to the above boiler and it looks that the plastic 'tray / sump ' on the bottom of the heat engine is leaking. Parts specialists couldn't tell me if the plastic part is a separate item or part of the engine. After 16 mins sat on the phone to try and get through to Glowworm, l lost the...
  14. S

    Glowworm 24ci DHW Plate Heat Exchanger

    Can someone tell me how long it will take take replace the DHW Plate Heat Exchanger on a Glowworm 24ci Thanks
  15. Super Mario

    Glowworm beta com hot water fluctuating

    Is it better to replace or clean the plate also its at the back and theres no drain point on the boiler whats the best way to remove it ? Cheers
  16. B

    Vaillant and glowworm

    Excessive time taken to answer tech helpline claims first victim
  17. KingDoey

    Glowworm Energy 25c vertical flue clearance

    Morning all cant find it in the book and Glowworm technical are impossible to get hold of these days. Vertical flue clearance from soil pipe vent. I am assuming is 600mm? Anyone confirm this? cheers
  18. woodsy

    Glowworm 30cxi

    Been out to above boiler, which is periodically blowing the 3amp fuse in the spur, nowt on the actual boiler. New fuse in and up the boiler fires and works good as gold for an hr, or two then bang again. Anybody come across this before and can give me a heads up ?
  19. T

    New old stock Glowworm spares.

    I've got a box of Glowworm spares including fans and gas valves if anyone is interested, just pm me and ill send a list. I know, i know its not the for sale page, but i don't want to put it on open forum.
  20. L

    Glowworm how to get a 240v switch live

    I've fitted a Glowworm ultimate 2 and have 2 zone valves rads and underfloor heating so need 240v switch live to open zone valves
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