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  1. A

    Glow worm store 35 f81 code.

    Hi all Got a problem with above boiler, fault code f81 and discharge from vent, central heating working OK. I think it may be a faulty temp sensor causing overheating, gauge shows 55degrees. Any thoughts very much appreciated Cheers .
  2. M

    Glow worm bypass seals

    Hi folks, anyone know what seals I need for the boiler below. Cannot find out if it is just the o'rings or seals as well. Cheers
  3. Andyh

    Glow worm bbu gas valve fail ?

    Hiya fella, thanks for the acceptance, I'm traditionalself taught as my company just did installs However I'vegot a a glow worm 56 bbu, pilot working fine (according to customer) but no main burner .. what's thegeneral testing of gas valveis it 1. Interupter 2. Thermostat 3. Resistance on...
  4. G

    Glow worm 45 back boiler

    Hi all Can someone steer me in the right direction diagnosing a glow worm 45/2 back boiler issue. It’s cutting out after about 10 minutes in operation. Always serviced, clean as a whistle. Pump is ok, header tank is ok. Motorised valve is ok. Any thoughts would be much appreciated. Many thanks
    • GasChecks
    • Thread
    • back boiler boiler glow worm
    • Replies: 9
    • Forum: Boilers
  5. M

    Glow worm easicom 28 leak

    Morning all, I have a slight leak issue with my combi boiler. I have noticed that there seems to be some water leaking from the bottom of my boiler, when I removed the cover just to see if I could spot the source I noticed there wasn’t really anything obvious until I accessed behind the...
  6. N

    Glow worm 30cxi no hot water

    Any ideas a Glow worm with intermittent hot water, heating works fine. Boiler showing F3 until resetting then works ok for a while then F3 again.
  7. P

    Glow Worm 30cxi will not switch heating on/off with timer

    Hello folks. I have a 12-year-old Glow Worm 30cxi combi powering hot water and central heating. The analogue timer clock packed up recently and would not fire up the central heating either. Assuming it to be a fault with the clock, I got a second hand replacement and fitted it. Clock keeps...
  8. G

    Goo worm combi boiler

    Hi. I hope someone can help. I have a glo worm combi boiler - previously had the heat plate cleaned and a magnetic sludge filter installed due to problem with no hot water. For the last few weeks the boiler has been coming on when room stat is set to frost and temp is not below 5 degrees...
    • GlynnH
    • Thread
    • boiler combi combi boiler worm
    • Replies: 1
    • Forum: Boilers
  9. Jamie Liffen

    Advice on glow worm ultracom 30cx

    Hi just looking for a bit of information, I’m GSR, have been for 8 year. Basically the company I work for have won a contract for boiler breakdowns which I’m not that knowledgeable about, due to only doing installs and Maintenence . I’ve been to look at a glowworm ultracom 30 cx which has no...
  10. Tommo25

    Glow worm 15 hxi roaring noise

    I services this boiler a few days ago. Routine service analyser in checked pressures all good etc. Cleaned condense. Didn’t strip the burner or have to touch gas valve. The next day the Customer has reported the boiler is making a roaring sound (never happened till I touched it). Anyone have...
  11. Inverness

    Old glow worm 30 ci combi

    im reading the manual for this boiler but I don't understand what I need to adhieve for the flue gas anaylser? I know it requires 3.4m3/h on a gas rate test with dhw on full? I'm getting 2.7m3/h. Also how to i adhieve for low firing on this boiler?
  12. Scott_D

    Glow worm energy.......

    Does anyone fit these? You don't hear much about them good or bad!
  13. KingDoey

    Glow worm Essential 28

    Hello Went today to commission the above boiler, which we installed a few weeks ago. Turn it on and the radiator symbol flashes as if it's calling for heat. Even with no demand. Hot water will not kick in. When you run hot tap the hot water symbol on the boiler does not even flash. There is...
  14. M

    obsolete Glow worm return pipe

    Hello I am looking for a boiler part that is obsolete : Return pipe part no S801048 for a Glow worm energy saving combi GC 2 80 47 047 13, model no 801091. British Gas have said they can’t fix my 80 year old mum’s boiler without it. I’ve discovered the boiler has been dripping for months...
  15. MrYates

    Glow worm Ultracom 30sxi expansion vessel replacement.

    After reading about problems and relating them to my situation it seemed that the expansion vessel could be faulty. I depressed the schrader valve inner. After a brief and insignificant exhalation, I gave it a pump. There was a gurgling bubbling noise from the EV. On re-testing for pressure...
  16. S

    Glow worm 24ci overflow pipe

    Hi, My glow worm boiler seems to be working as normal but I am getting a constant pouring of water outside from the overflow pipe, any ideas what I should check?
  17. T

    Glow Worm 30cx, can't get C/H to work and Rad symbol showing OFF

    Evening all First off a big hello from a sparky to all you fellow Plumbers/Gas Engineers out there. I'm not here to say who's better than who and I really do hope you will all show me mercy as I will admit even I have limitations, hence why I am here to ask for help. Basically, I have...
  18. daWilko

    Advice on Glow Worm boiler please

    Hi All, I'm new here but fairly active in Sparks Forum (@Last Plumber where are you?). I've recently moved and have a Glow Worm Flexicom 18hx. Heating is gravity fed, y plan, external pump, small loft tank for CH and large tank to feed taps and HW. It all works, but not very warm. The boiler...
    • daWilko
    • Thread
    • boiler glow worm
    • Replies: 17
    • Forum: Boilers
  19. D

    3 bed bungalow, Glow worm 125 electronic combi , heating excellent, taps temp rubbish,

    Hi folks, I recently moved into this bungalow and am not at all happy with the boiler, which is situated in the garage. Every morning I have to run off 3/4 of a bucket of water before any hot water arrives and even then it's not very warm I have to boil a kettle to wash the dishes. Kitchen and...
  20. K

    GLOW WORM ULTRACOM 30 CXI - HEATING PROBLEMS

    I have just moved home and inherited the above boiler which it doesnt seem has been maintained or serviced. So far we have established that the boiler thermostat is not reacting to the boiler temperature. The boiler is heating up very quickly then gets to a high temp or about 72, the rads...
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