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junior

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  1. U

    Greenstar 24i junior boiler problems

    Hi my boiler is just under 3 years old & has been regularly serviced. Last time was November. Someone coming to see it on Tuesday but would like some input as to what is causing my problems to confirm what the engineer says. I noticed the other day that the pressure relief pipe outside was...
    • Unregistered
    • Thread
    • boiler greenstar junior
    • Replies: 1
    • Forum: Boilers
  2. M

    Worcester Greenstart 24i Junior advice needed please

    I know there are few Worcester Bosch perverts on here - need some advice please! Is it possible to remove the plate heat exchanger from the Greenstar 24i Junior without removing the hydroblock? If so, any little hints and tricks? If not, how long to remove the whole shebang and replace? Ta!
  3. A

    Worcester greenstar Junior

    I've got a problem with a 24 junior that fails to stay alight in low fire, I can't get it to stay on long enough to adjust the CO on min, has anyone had this before?
  4. S

    Worcester Bosch 28i junior, hot water fault.

    Good evening guys n gals and happy new year, I got called to the above boiler today as the customer said the hot water was running hot cold hot cold. I ran the tap and the boiler fired up and the hot water got warm but I wouldn't say hot then boiler stopped firing up, I left the hot tap...
    • Sharp Point
    • Thread
    • bosch fault hot water junior water worcester worcester bosch
    • Replies: 2
    • Forum: Bathroom Advice
  5. B

    Flashing blue light on Worcester Greenstar 28i junior

    Hello, I am fitting with some help from a GSR friend, when his precious time allows, a 3 year old combi boiler to replace a defunct 25yr old potterton combi. The boiler was only removed because the owner installed a thermal dynamic system. On first fire up the CH worked fine although the hot...
  6. A

    Worcester Junior condensate seals

    Servicing a 4 year old Junior today, the rubber seal on top of the trap didn't want to seal again. Had this before on a Ri, greased it up and it was fine. Had this one out 3 times adding grease and turned the rubber round, just kept letting a little condensate out. Ended up using a little clear...
  7. R

    Worcester 28i Junior gas valve problems

    I've replaced the old gas valve on the above for the new sit valve. The boiler was firing on on the old one but the FGA reading were way out. I've followed all the instructions on setting the high and low for the size of boiler. It's now not firing. On call for heat I get 35v at the molex...
    • Rckape
    • Thread
    • gas engineer junior valve worcester
    • Replies: 5
    • Forum: Gas Engineers Forum
  8. T

    Green star 24i junior

    Hi guys just wanted some opinions, had a customer with the above Boiler, when a demand was called, heating or hot water, the pressure rises up to 2.5 bar, no hot water to taps and the kebab too hot, to touch. The ev wouldn't hold charge so I have replaced the vessel and the hose. I got hot water...
  9. J

    Plate heat exchanger Worcester greenstar junior 28

    Has anyone changed the plate heat exchanger on above boiler? Any tips ? Ta
  10. S

    expansion vesse lworcester bosch 28i junior

    hi, Is it necessary to disconnect the old expansion vessel before fitting an external e/v to a28junior boiler. suspect I've got one that's leaking slightly.
  11. K

    Worcester 28 junior central heating running constantly!!!

    I have been to said boiler today for no hot water..straight away I j ew it was the motorised pin on the diverter valve so changed, since this was done the heating curcit runs constantly!! I'm bamboozled and thought I would ask if anyone else has come across this situation??
    • Kndb2915
    • Thread
    • central central heating heating junior running worcester
    • Replies: 1
    • Forum: Central Heating Forum
  12. kozak1968

    TMV 2 and Worcester Junior

    Are there any issues with installing a TMV2 on the supplies to a kitchen sink?The boiler is a Worcester junior 28 which has no temperature control on the hot water. The customer is old and wants to reduce the temperature of the hot water.
  13. M

    Worcester Greenstar 28i Junior - Heating wont come on - Hot water is fine

    3 -5 year old worcester greenstar 28i wont fire up properly, when you call for the heating to come on it sounds like its fired up and the ignition light comes on, after around 30 seconds the light goes off and the flow and return pipes are only slightly warm, Hot water seems to be working fine...
    • MarkKershaw
    • Thread
    • greenstar heating hot water junior water worcester
    • Replies: 6
    • Forum: Bathroom Advice
  14. finchy01

    Worcester 28i junior no heating

    Hi all. A real simple one I expect. I have just been to a customer who had no ch or hw. That's now sorted with a new pressure switch. Trouble is now their children won't fire on demand from the digistat. It does however work o the override on the boiler. The reciever has a solid red light on...
  15. E

    Worcester 24i Junior Boiler - Light Keeps flashing every second

    Hi Everyone New to this forum :D Just came back after a long trip today being forced by my wife to take her to her parents house for the day :cuss: So after a long day 2 large meals:wink_smile: 2 hour long drive back home:beatnik: i reach home 1am in the morning absolutely shattered needing a...
    • error404
    • Thread
    • boiler junior worcester
    • Replies: 2
    • Forum: Boilers
  16. C

    greenstar 28i junior PRV replacement

    Managed to change a prv today with out removing hydro block or taking boiler off the wall! was bloody awkward though luckily my hands are pretty small. how do most people do these? im yet to decide on best method
  17. T

    Greenstar 24i Junior Heat Exchanger Leak

    I recently moved into a new place and got round to pulling the case of the boiler the other night, I found some sort of toffee like substance seeping out of the top of the hex. Worcester are saying they give a 10 year warranty on the hex but want £263 for the call out fee! Anyone seen thia before?
  18. K

    Greenstar 28i junior fan

    Anyone had a fan go on one of these after swinging out for maintenance? Changed set of electrodes on one this morning as was failing to light after sparking (gas valve ok). Could literally hear the board on the fan fizzing at me before a little "pop". 2007 model
  19. M

    Greenstar 24i Junior (LPG) problem

    Evening all, Has anyone came across an issue where the boiler will light then 2-3 seconds later goes out sounds like its being snuffed out not like when no flame rectification, I have checked everything I can think of relating to the gas/air mix. Changed the gas/air mix manifold at back of fan...
  20. C

    undersized gas to worcester junior 241

    only getting 31mb (LPG dungs valve) at inlet pressure when boiler is on at max. drops to 29mb when cooker is switched on , they are the only 2 appliances in the house. aprox 7 meters from regulator to boiler , all piped in 15mm with 7 or 8 elbows . why somebody would pipe it up in 15mm is beyond...
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