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worcester bosch

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  1. D

    Worcester Bosch 28i series 2 not heating radiators

    Hi, I have a microbore heating system with the above boiler, now 18 years old. recently, I had 3 radiators replaced and all worked fine for about 3 weeks. Now however most of radiators are only getting warm, some hardly at all. The pump is running and the whole system has been bled and topped up...
  2. Mikesaint

    Worcester Bosch Greenstar 12 Ri yellow cap

    Hi, anyone able to assist naming and tracking down a part for this boiler. It's between the 'mains cable inlet' and the condenser drain. It has a yellow plastic screw on cap which has split and is leaking. Seems a simple part to replace but I can name or find it on any parts site Thanks
  3. T

    Worcester Bosch Greenstar 24Ri LPG Leaking From Inside

    Hi I'm worrying about my wall-hung boiler which has leaked a couple of times from somewhere underneath the green on light. I believe this is to do with the syphon trap leaking condensate, can you suggest what it might be? Just my luck over Christmas !
  4. D

    Worcester Bosch Greenstar 30si LPG Thermostat

    Hi I have a 6 year old Worcester Bosch Greenstar 30si LPG Combi Boiler, currently I have a Honeywell T40 thermostat with the Brown Wire going to connector no 3 and Blue Wire going to connector no 1. I have bought a Honeywell Lyric T6 Smart Thermostat. There are 2 parts, first the Reciever Box...
  5. B

    Which Worcester Bosch Boiler For Our Home? Please Help!

    Hi All, We may need to replace our boiler - the OLDER version Worcester Bosch 35Cdi (see images attached) Our home is a 1920's Semi 5 Bedrooms 2 Bathrooms 5 x Large (1800mm) Double Panel Radiators 1 x Large (1800mm) Single Panel Radiator 3 x Medium (1400mm) Double Panel Radiators 2 x Short...
    • Bazzy
    • Thread
    • boiler bosch worcester worcester bosch
    • Replies: 39
    • Forum: Boilers
  6. R

    Worcester Bosch 30i for a 4 bed house?

    Hi all, I'm currently in the process of replacing my ageing potterton conventional boiler with a combi. We've had a couple of quotes but there's one company in particular who we're thinking of hiring to do the job. We have a 4 bedroom house with a single bathroom and 11 radiators. This...
  7. D

    Slow flow DHW from Worcester Bosch Greenstar 28i Junior Boiler

    Hi, I've got a 7 year old Worcester Bosch Greenstar 28i combi boiler, the dhw flow rate has gradually got slower over time and is now only about 4 litres a minute, the water is consistently hot all the time just slow flowing, all the hot water taps in the house run at the same pace, cold flow is...
    • Danman
    • Thread
    • boiler bosch flow greenstar junior worcester worcester bosch
    • Replies: 1
    • Forum: Boilers
  8. Michael Groves

    Worcester Bosch Greenstar Ri boiler short circuit

    I’m an electrician. I’ve been called to customer home to trace a short circuit. When I disconnect the boiler and put my meter across live and neutral I get 118 ohms. I called Worchesterbosch tech support and the guy said yes that’s normal, no hold on I’ll ask my mate. Then apparently said no...
    • Michael Groves
    • Thread
    • boiler bosch greenstar worcester worcester bosch
    • Replies: 17
    • Forum: Boilers
  9. L

    Worcester Bosch Greenstar - No CH

    Hi Guys, Wondering if you could offer some advice, we have just bought our first house and we are having a nightmare with the CH. I will be having the full system replaced in the next 12 months (when we have the £'s), but for now, I am hoping to keep the old system going. We have a Worcester...
  10. R

    Worcester Bosch Heatslave 20/25 oil hose size

    Worcester Bosch Heatslave 20/25 oil hose need to pick one up from my local plumb merchants and hes asking what size connectors male female etc does anyone know the spec i require thanks
    • richard3009
    • Thread
    • bosch size worcester worcester bosch
    • Replies: 2
    • Forum: Boilers
  11. M

    Worcester Bosch Guarantee

    Had a WB Greenstar 30 Si fitted end of July with installers invoice stating a 10 year guarantee. Have received an email from WB acknowledging registration of the products guarantee but absolutely no details of time span or terms and conditions. Can't seem to get any sense from their...
  12. M

    Long term noise levels Worcester Bosch 28CDi vs 30i

    Hi Choosing a new replacement Worcester Bosch combi boiler - both are about the same price. Anyone have experience of what the noise levels are like - the WB website says 52 decibels for the small one and 50 decibels for the larger - but what are they like in real life over the longer term...
  13. T

    Help with Worcester Bosch Greenstar 24

    Hi All, I need a little advice. With the current weather the boiler at my girlfriends kept going into error mode last night and from what I can see the following has happened. The condenser out goes into a waste pipe with a U Bend, the said U bend then had the wasing machine waste pushed into...
  14. S

    Worcester Bosch 24i water going cold

    Can anyone shed a light as to why a Worcester Bosch 24i junior dhw sets off hot then after about 2 minutes goes cold then heats up but only slightly. Occurs at all taps and shower.
    • scoz
    • Thread
    • bosch cold water worcester worcester bosch
    • Replies: 9
    • Forum: Bathroom Advice
  15. G

    Clock not working on Worcester Bosch MT10RF/mechanical RF thermostat

    Hello The clock has stopped working on my Worcester Bosch MT10RF/mechanical RF thermostat. I have changed the batteries but the clock still does not work. There is a radio link with the boiler as the light is green. And I can switch the heating on by just using the bottom left hand switch to...
  16. T

    worcester bosch 350 programmer

    Hi guys. For those of us that are still involved in one way or another with these combis, heres a workround if youve got a timer/programmer that has a flat battery. The problem with a flat battery is as you know in the event of a power disconection the programmer losses its settings and...
  17. S

    Worcester Bosch Greenstar 18Ri Frost protection

    Hi, I have a Worcester Bosch Greenstar 18Ri regular boiler installed within my garage. There is also a Honeywell T4360 Frost Thermostat installed just above and to the left of the boiler. The problem I was having was that the Frost Thermostat was kicking in in cold weather and firing up the...
  18. R

    Worcester Bosch heating not staying on

    I have the WB green Star 24i with a manual timer. We only have it set on/off and not use the timer, the issue we have is that it runs fine but when the heating switched off it doesn't come back on. The only way is to push the on switch on the timer upwards from the on position and it fires up...
  19. T

    Worcester Bosch combi timer issue

    I have a WB combi boiler. We never use the timer which is the mechanical type on the lower front of the boiler but have it set to constant and use room sat to turn it on and off when required. This method of use suits us well. I noticed recently that the constant setting has stopped working and...
  20. M

    Worcester Bosch Greenstar (conventional) Not Firing

    Evening Guys, No heating or water from our Worcester Bosch Greenstar 30cdi conventional boiler. When starting up the boiler the pilot light comes on for around 30/40 seconds. There is then sharp gurgling noises and the ignition from the pilot light goes out. I did a quick video here which I...
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