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Robert Bosch GmbH (; German: [bɔʃ] (listen)), commonly known as Bosch, is a German multinational engineering and technology company headquartered in Gerlingen. The company was founded by Robert Bosch in Stuttgart in 1886. Bosch is 92% owned by Robert Bosch Stiftung, a charitable institution.Bosch's core operating areas are spread across four business sectors: mobility (hardware and software), consumer goods (including household appliances and power tools), industrial technology (including drive and control) and energy and building technology.

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  1. P

    Bosch warranty

    I have two 10.8v combi drills, one bought in 2013 and one 2014/15 and both have trigger problems. One failed me tonight (stone dead with full battery) but has suddenly started working again. How long are bosch blue warranty, I haven't registered them, should I have done?
  2. MarkAqua

    Intermittent heating issue. Worcester Bosch Combi

    Got a intermittent heating fault with a Worcester Bosch 30Kw Combi 5-6 years old. It has Drayton Digistat RF+1. Boiler works fine in hot water. Heating worked when i switched it into service mode. The Drayton receiver box has the alarm LED permanently on red The batteries have been changed...
  3. 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...
  4. M

    Bosch Worcester Greenstar i System Boiler Ventillation requirements

    Hi all, Looking for advice on the ventillation of the Bosch Greenstar i System Boilers. I've had one fitted into a new home I've purchased and the developer missed a course of bricks out so the ceiling is too low to install a vent to the outside. The boiler is in a small room (2m x 1x1.8m x...
  5. K

    Worcester Bosch 30cdi - no power to the pump?

    Home owner here. All was working fine this morning. Now the boiler comes on and quickly runs up to to over 100 centigrade and then cuts out for both CH and HW singly or together. I have checked the power to all the 3 port valves and there is power. There is no power to the pump (a typical red...
  6. R

    Worcester Bosch 27 Ri only running at 7kw output

    hi Got a customer where installed above boiler 9months ago and has been working fine. They called complaining that the rads and hot water not getting very hot especially when both were on together. Checked system and boiler and found after doing a gas rating check it was only running at 7kw...
  7. R

    Problem- Worcester Bosch Greenstar 40 HE combi with Grohe mixer

    I have no problems with one of the showers or the 4 sink basins in my house but when we use the main shower, the Worcester Bosch Greenstar 40 HE boiler overheats, giving error E9. This has started recently after 10 years of good working order. Other facts: 1) The water temperature in the shower...
  8. J

    worcester bosch 28cdi (old boier) cold water feed inlet filter

    Hi I would appreciate some advice as my boiler has a small leak from cold water feed at the back of boiler. The bit where the copper pipe feeds into the cold water inlet filter. Is it possible to fix this easily myself, or how much would it cost for a plumber to fix. Thanks jim
  9. Eyespy999

    Stud detector

    Hi all, Can anyone recommend a decent stud / detector please? I bought a lidl one a few months ago (you get what you pay for) which is really hit and miss. Any help appreciated. Thank you
  10. M

    9 month old worcester bosch 29cdi, gas smell and no hot water downstairs, please help

    Hi guys, Had a new Worcester 29cdi boiler fitted in January at the start of a refurb. Was replacing an old back boiler. Had Yorkshire water out and although the pressure wasn't the best they said it was enough to support a combi. Got a Worcester accredited installer on board and he said the...
  11. hammers4spanner

    System Boiler

    Anyone recommend a good system boiler with decent warranty ? Not fitted a system one for a while .
  12. A

    Worcester Bosch Greenstar 24 Ri Not Firing!

    Hello All, I would be grateful for your thoughts on a problem with my Greenstar 24Ri running a vented system with HW Cylinder, CH and UFH. Since approx April the CH & UFH have been off with HW timed for early morning / evening daily. In mid-August, we awoke to no HW and boiler was flashing...
  13. R

    Why/ How are Baxi boilers so much cheaper than Worcester Bosch?

    Plumbfix are selling the Baxi duo tec 24 for £560 ex vat and the WB greenstar 25 SI £898 ex vat. Baxi has 7 year warranty, WB 5 years. Why are WB boilers so much more expensive? After going to a couple of WB training days, I was really impressed. I've been telling customers that they're the...
  14. 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.
  15. P

    Hilti SDS drill or Bosch?

    My old 850W Bosch SDS seems to have lost some of its punch after 8 years of abuse (mainly mixing plaster!) I want to buy another drill with my scrap money (will be around £200). Drill will be a stand by and will continue to use the old one until it dies...
  16. S

    worcester bosch flue pressure

    i usually stay away from wb'sproducts but i have to service a wb junior tommorow i know that you have to put the gauge on the flue and i know for the particular model the reading must be greater than -3.1 mb but im never sure which way is greater as in more vacuum ie a reading of -3.2 or less...
  17. S

    External Oil Boiler - Grant or Worcester Bosch?

    Hi Chaps - first post on here, so be gentle :) We'll be getting a new oil-fired CH system fitted this summer, and will require an external boiler. Speaking to various installers, it looks like a straight fight between the Grant Vortex Pro 15-26kW and the Worcester Bosch Danesmoor 18/25kW. Both...
  18. M

    Worcester bosch 24i system blue light not on

    Hey, Just fitted WB 24i system boiler and the blue light does not stay lit while the boiler is on but it all operates fine apart from the blue light It flashes when goes to lock out etc Eg i shut the gas off or reduce pressure Any thoughts Cheers
  19. G

    New Worcester Bosch Models

    Hi all, I'm new to the forum; I currently work in South Wales for a plumbing and heating company. We have just won a contract with a local council and they have said they are interested in the new WB models 25i and 30i. They were launched beginning of May - just wondering if anyone has looked...
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