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junior

  1. S

    Worcester-Bosch Junior 24i fault light but dolds pressure, no hot water, thudding

    Hi, I have a Worcester-Bosch gas fired condensing combi boiler Greenstar 24i junior The boiler keeps flashing fault lights, it's holding pressure but keeps flushing water through and making a big thud every 15 seconds and now hot water was being produced. I have coaxed it into working by...
    • sgannon60
    • Thread
    • fault hot water junior pressure water
    • Replies: 3
    • Forum: Bathroom Advice
  2. S

    Worcester greenstar Junior 28i possible leaking hex.

    I posted about a week ago regarding my own boiler (the above) not fitted by me as I cant stand Worcester boilers. I suspect the hex is leaking as boiler drops pressure even with service valves closed. I have had it off for a good day now have topped it up twice to around 2 bar and the pressure...
  3. M

    Worcester 28i junior scolding hot water

    Hi I have a Worcester 28i junior boiler and this morning I ran the hot tap for a few minutes and the water came out scolding hot.i then couldn't get anymore hot water so I left it for an hour and the hot water came out again but again It is now scolding. I did a bit of research online and seems...
    • MrD1986
    • Thread
    • hot water junior water worcester
    • Replies: 8
    • Forum: Bathroom Advice
  4. K

    Mech timer for Worcester 24i junior,

    I know I can ask the merchants but someone here will know, how much for this timer? Ta
  5. N

    Greenstar junior

    Anyone had a fault where the boiler seems to get stuck in pump overrun, fire and go out ( then stay in pump over run for 5 mins) etc before? Had 240v on the pump but it wasn't running, swapped pump even though the fault had nothing to do with a pump running but still playing up. ext. controls...
  6. C

    Worcester 18i junior fault

    Looking for a bit of advice got a Worchester bosch 28i junior non condensing, - got to the property boiler would come on for 1-5 minutes then fan would stop and flame would lift around the burner, - then it wouldn't give 240v to the fan when resetting. - then it went back to the first fault...
  7. O

    worcester junior main heat x replacment.

    I have to replace the main heat exchanger on a worcester junior tomorrow part no 491878. Having done this 3 weeks ago on another boiler and having real trouble (2hours) getting it off the pipes, I would like any advise you guys can give. Thanks in advance.
  8. F

    Greenstar 28 I junior ignition lockout

    Hi guys , having an issue with the "great" greenstar . Basically it does try to fire up, u can hear the spark clicking , it does try few times then it goes to lockout.(flushing lights) Checked the gas valve , condensing trap , can't check the ratio .before I start striping out .. any suggestion...
  9. A

    Dripping fitting after re pressuring ( greenstar 28i junior)

    Can anyone help? I've had to re pressurise my combi boiler (green star 28i junior) after the pressure had dropped, I followed the manual and inserted the filling key into the filling link turned to padlock icon then turned the white knob to fill the system. I then reversed this when the...
    • Andy-jh
    • Thread
    • fitting greenstar junior
    • Replies: 3
    • Forum: UK Plumbers Forums
  10. M

    Old worcestor 28 junior.... Try's to spark for 2 secs goes to lockout...

    As title... Only try's for 2 seconds goes to lockout?
  11. M

    Worcester junior greenstar - overheating

    As title but of background Called out to boiler seized pump, split seals and air vent spewing out gunk.... Changed pump and body.... Pump starts, fan starts, ignition sequence - fires.... Within seconds overheats and starts sizzling and banging in main heat ex.... Now this cust is skint...
    • moony
    • Thread
    • greenstar junior worcester
    • Replies: 14
    • Forum: UK Plumbers Forums
  12. B

    Worcester 28i junior, non condensing - is it the pcb?

    Hi guys, went to one of these boilers today. Everything working as normal but no gas coming through gas valve. Tested the voltage on the power leads to it and was getting 47v. Sure I should be getting 230v. Checked the resistance on the valve too, anyone know what the resistance should be? if...
  13. Super Mario

    Im fiiting my first worcester greenstar junior today

    I heard they are a pain in the arse is there anything i should look out for? It comes with a jig that goes on the wall first.
  14. K

    Worcester 24i Junior lockout

    Hi all, another Worcester giving me grief lol. 24i Junior (not greenstar) going to lockout. I spent 2 1/2 hrs with this on Friday, serviced, cleaned out the low water pressure switch, wasn't to bad really. Went to lock out after 15 mins use, I took the water pressure switch out of circuit...
  15. T

    intermittent lockout 24 I junior ( non condensing)

    I have a Worcester 24junior, (early one not the greenstar) intermittent lockout, suspect ignition lockout, but cannot repeat fault when on site, all works lovely after reset. Frustrating!!! Fan replaced last year (seized) Inlet 23Mbar standing 21mbar working Bp12mbar Spark...
  16. H

    Greenstar 28i Junior Combi

    I have a Greenstar 28i GC 47-311-87 NG to service, it's 2 years old. It will be the first time I have done one of these. I have read the MI's about taking the pressure and removing and cleaning HEX if pressure less than -3.9mb. They say you need a special tool to remove the HEX and clean it...
  17. S

    Worcester 24i junior combi greenstar

    I have a fan to change on the above boiler, Has anybody done one recently? If so, how long should it take as the customer wants a price for installation before I start it? Paul
    • so-solar
    • Thread
    • combi greenstar junior worcester
    • Replies: 14
    • Forum: UK Plumbers Forums
  18. B

    worcester greenstar 24i junior green light flashing.

    hi every one and merry Christmas to you all.<br><br>i wonder if you can help. i have just bought a new home fitted with a Worcester 24i junior condensing boiler , &nbsp;i used it yesterday and it worked ok on hot water and CH. however when i tried to use CH and hot water today no joy so i...
    • bill29
    • Thread
    • greenstar junior worcester
    • Replies: 13
    • Forum: UK Plumbers Forums
  19. A

    Worcester 28i junior rsf air switch wont kick in

    I have a 28i junior rsf(pre-condensing) The board fuse blue the other night so I replaced it and it blue again As I had come across this problem before on customers boilers I unpluged the fan from the board and the fuse said ok So I replaced the fan. The boiler fired ok but next morning the...
  20. A

    Worcester Greenstar 24i Junior Combi Boiler - No Power

    Hot water cut out mid-shower this morning and when we went to the boiler it had no lights on and pressing the on/off switch does nothing. I gather from reading various fourms that i'm looking at a blown fuse, a faulty fan or pump or a combination. What i'm unsure of is how to check any of these...
    • alex1985
    • Thread
    • boiler combi combi boiler greenstar junior power worcester
    • Replies: 3
    • Forum: Boiler Advice Forum

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