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worcester

  1. Hobo128

    Worcester G* Cdi 37kw... Luke warm DHW

    Hi guys... Happy New year to you all.... Been out to a Worcester Greenstar Combi last week.... Problems with hot water not getting very hot.... Boiler is set to max on and I'm getting about 40 degree out of the tap.... Turned of the flow and return at the boiler to check diverter but this made...
  2. L

    Worcester 15ri Issues

    Hi, i was wondering if somebody could give me some advice..... I was called out to a boiler breakdown the other day. Worcester 15Ri. When i arrived onsite the blue light was flashing i put it into reset, fan started, boiler ignited . Boiler reached temp very quickly and shut down on overheat. I...
  3. M

    Difference between Bentone Inter B9A and B Worcester burners?

    Does anyone know the difference between the model B9a burner installed on the Worcester Heatslave 12/14, and the B9b in the 15/19? On the face of it there doesn’t seem to be much difference. Unfortunately the B9a that I have got has had bits robbed off it so it’s difficult to do a direct...
  4. P

    Help needed! leaking isolation valve on Worcester Boiler

    So, got a lot of water leaking from my boiler. (Old Worcester 28CDI) Looking underneath it appears to be from the isolation valve (at the point where you close or open it) I've switched off my water supply, and turned off the heating for now as I'm about to go to bed. Question is, is this...
  5. S

    Worcester Bosch Greenstar 24i Mk4 system boiler that is locked out.

    Hey Folks. I have a Worcester Bosch Greenstar 24i Mk4 system boiler that is locked out. The boiler was working correctly, then the gas supply was turned off (to service another appliance) but the boiler was not turned off. I assume that the boiler tried to cycle on and off as requested by the...
  6. S

    Worcester Bosch Danesmoor 20/25 Problem

    Is there anyone out there who has come across this problem. Our boiler locked out so pressed the reset button and it seemed that all was fine. Red light went out and fan started etc. About an hour later noticed nothing seemed to be warming up. But motor was still running and no lockout. Called...
  7. S

    Worcester Greenstar 30i ErP heating Issue

    Hi I am wondering if anyone can give me some advice/help with this issue. I have a Worcester Greenstar 30i ErP which got it's first yearly service by B/Gas 2 days ago. The boiler was working fine prior to the service, and seemed to work o.k yesterday, this morning the radiators went cold...
  8. S

    Viessmann/Worcester/vaillant

    I have done a extensive research and watched hours of videos about all of them and looking for the most suitable boiler for our house. The house is 5 bed, 4 bathrooms, 20 radiators and maybe in future underfloor heating, 5 people living here and very rarely we use more than one bathroom. Flow...
  9. S

    Worcester Greenstar 8000 Style 50kW versus Viessmann Vitodens 111-W 35kW Storage Combination Boiler

    I would be grateful if I could have some details about both of these boilers. so I was thinking of a point system from 0-10 on the followings and any details you could share I would be most grateful. 1.Built quality 2.durability 3.customer service 4.ease of servicing 5.user interface I live in...
  10. C

    Worcester Greenstar Boiler

    We have two issues. I suspect that they are not actually problems – the heating work fine. Worcester Greenstar CDi. Installed in unheated garage. Protected by Honeywell pipestat and froststat. 1. The garage was cold (approx. 7° C). The room thermostat had demanded heating and the...
  11. R

    Worcester Boiler change to Combi

    Hi All, I'm looking into changing my conventional boiler (Worcester 30CDi conventional) to a Worcester Greenstar 8000 Style 30kW Combi. My house has 2 bathrooms/4 beds - showers (Aqualisa) in both bathrooms, but never likely to be on at the same time. Has anyone made the switch with these...
  12. M

    Can anyone help with a worcester greenstar 37cdi combi?

    It works fine during the day but when it turns off at night, I.e no demand, in the morning it won't fire up. The roomstat is calling for heat ok and there are no fault codes coming up but the green pilot light isn't lit and the boiler doesn't fit up until I push the reset.
  13. J

    Wiring for ufh zone Worcester greenstar heatslave 18 25

    Hi, first im gas safe registered so know a bit about wiring but my own boiler is giving me a head ache. Worcester greenstar heatslave 18 25 oil i fitted a nest just linked ch from boiler demand to programmer demand all good. I now want to wire in another stat for my ufh but dont know what to use...
  14. S

    Worcester Keyless Fill Extremely Slow

    I've got a Worcester Greenstar 38CDi Classic ErP with a keyless filling link. One of the rads has a tiny leak so every few months I have to top up the system (and bleed a rad upstairs). I should get the leak fixed but since it's so minor I haven't bothered. My actual problem is that the system...
  15. R

    Worcester Greenstar 38cdi Classic Combi Minimum Flow Rate

    Hello there, I'm wondering if anybody can advise me, please. I'm in the process of switching my thermostatic radiator valves to Drayton Wiser valves. I currently have one radiator fitted with lockshield valves as a bypass, but I would like to put a Wiser valve on this as well and incorporate...
  16. C

    Worcester CDi error code

    Hi I am new to this forum and looking for some help with an annoying issue with my Worcester CDi boiler ( installed about 2010 ). It provides heating and hot water ( through a separate lagged water tank). Over a year ago it started going into a mode for a number of minutes before it then...
  17. KarlAtkins

    Air trapped in Worcester greenstar 15ir

    Hi, need help asap as family freezing and now no hot water either. We recently had an air lock in the boiler which was cleared by a professional, on Friday morning we woke to no heating or hot water again and so arranged for some plumber to come back on Saturday to investigate, he didn't show...
  18. seanadams121

    Worcester 28i rsf playing up

    Hi chaps, worcester 28i rsf combi, pump running,fan running but no ignition sequence, iv blew down aps and stil doesnt start up. Im thinking over heat stat is the issue. Does anyone have any guidance on this boiler? Any help appreicated, dont usually get involved in fault finding, installs man...
  19. J

    Intermittent EA fault on on Worcester Greenstar 38 CDi GC 47-406-38

    Hi Can anyone help? I've got a problem with an intermittent EA fault on a Worcester Greenstar 38CDi Classic GC 47-406-38. I was called out to it but couldn't get it to go to fault- each time it fired up however, on a video the customer took he kept having to reset it. I checked the gas rate...
  20. S

    Worcester boiler condensate won't drain.

    Good afternoon all, I have a Worcester boiler installed recently. It was moved from the first floor to the loft. Existing 22mm condense pipe was extended to the loft. It looks like the old pipe has no slope and prevents air to get into the boiler condensate trap, preventing condensate to drain...

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