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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. M

    Bosch junior 28i pressure goes up and down. Advice please.

    Hi. After the issue, I've had recently and a visit from an engineer (full story below) I've got the following symptoms. On my boiler Bosch, junior 28i pressure goes all the way down to 0 bar when only hot water is in use but goes all the way up to 3 bar (and probably above) when central...
  2. H

    Worcester Bosch Heatslave 26/32 Hot Water Problems

    I have a Worcester Bosch Oil Heatslave 26/32 which is about 17 years old. It has developed a fault that has come in stages so it might be more than one fault. It was fitted with the OEM programmer. 1. When the water heating is on, but the room heating is off, the boiler sometimes heats the...
  3. S

    Worcester Bosch Heatslave 20/25 Hot Water Not Working

    Hey there, I have a boiler (Heatslave 20/25) that had low pressure. I topped the pressure back up to 1 bar using the external filling pipe but the heating still won't come on. Do I need to reset anything? Thanks for any help
  4. M

    Opinions Re: Worcester Bosch Greenstar 30i Combi

    Hi, would welcome some advice/opinions please. I currently have a Remeha Avanta plus 28c (combi) which is 11 years old, still working in a fashion but beyond economic repair. I have the opportunity to have a Worcester Bosch Greenstar 30i (Combi) installed using the boiler grant scheme...
  5. G

    Worcester Bosch Greenstar 24i Junior cuts out during use with reset button flashing red

    Hi So this morning I was having a shower and suddenly my hot water went completely cold. I jumped out and had a look at my boiler. I noticed that the burner had stopped and the reset button was flashing red. The blue oval shaped light in the middle was on and stable (it was blue). I reset the...
  6. T

    Advice please about fitting mixer shower from Worcester Bosch 25/ 32 heatslave oil combi

    Hello everyone. Looking for comments/advice please about my wife's latest request... Which is to remove the existing bath from an upstairs bathroom (apparently we don't like it anymore!) and replace it with a shower. The hot water is from an external oil combi also feeding a second bathroom...
  7. I

    Bosch EasyControl CT200

    Hey all, Ive a Greenstar 30i combi, looking to upgrade my current wireless thermostat to a easy control ct200. which adapter do I require to fit the boiler to control wireless function? TIA
  8. J

    Worcester Bosch 37CDI Combi leaking

    Hi all, Our Worcester Bosch 37CDI has developed a leak from this part, located above the green casing, as you can see from the drip in the picture attached. Could you please tell me what this part is? Many thanks in advance John
  9. R

    Worcester Bosch wires melting

    Hi about an hour ago all the lights in my house tripped out. I went to the fuseboard and one switch was down. Flicked it back and it tripped out immediately. few moments later theres and acrid smell and a little smoke in the room tracked the smell down to the boiler, took the cover off and...
  10. M

    worchester bosch 34cdi

    Hi I have a Worchester bosch 34cdi 3 years old recently started to loss pressure associated with water running from the condensing pipe every 15 minuets I/2 a tea cup and i know this because it had a lift pump which i noticed was pumping all the time removed the pump placed a bucked under pipe...
  11. centralheatking

    Bosch PKS 16 Circular Saw well worth a look

    I would never review a tool on here unless its well tried and tested. So This Bosch mini circular saw which will cut wood, mdf etc with one blade and tiles ..and concrete ! with the other blade. I have had it about a year now and I really abuse this stuff ...used it almost everyday so not DIY at...
  12. J

    Worcester Bosch Greenstar Combi Anti Cycling

    Acquaintance has problem with a 5 radiator zoned system which takes ages to heat up. The boiler (don't know output) fires up normally and after ~ 20 minutes reaches its setpoint of 65C, over the next few minutes it will creep up to 70C and then cut out, again fairly normal if min boiler output...
  13. J

    Worcester Bosch combi - HW suddenly runs cold for a few seconds

    Hi - I've searched the existing threads but not found an answer... I've just had a new W-B combi installed and it's excellent. But the question is about what's "normal". My wife and I both take a shower each morning, one after the other, and the shower is turned off for 10-15 seconds while...
  14. G

    Worcester bosch 42cdi

    HUMING through pipes when boiler not on programed to be on 42cdi switched to eco runs heating and hot water all day ok at night after heating switches off we can hear the HUM through the pipes iv looked at boiler with no burner light on but I think pump is still running any help
  15. D

    Worcester Bosch greenstar 30si locking out

    Having problems with this boiler with the hot water running for about 5 mins it locks out .then after a while I try it again it works for another 5- 10 min then locks out again CH is ok , I’ve done usual checks the gas valves ok and the amount of pressure is there is fine ,and ohms is about...
  16. N

    Will a combi boiler be adequate for my house?

    We recently moved into a new home that currently has a Super Hot MG-100 Hydronic Boiler (installed in 1986, when the house was built). Clearly, the boiler is way past its life expectancy and in need of replacement. We had a couple of boiler companies come give us a quote and one of them...
  17. L

    worcester bosch W11 water heater

    Hi am looking for some help with a water heater that has been driving me crazy. I fitted the Worcester Bosch W11 in a caravan around about a year ago, after fitting this boiler I was having problems with the boiler shutting down occasionally when hot water was flowing so i changed the flow...
  18. C

    Worcester bosch greenstar 28i Junior no HW

    I have a worcester greenstar 28i junior boiler in my flat, its about 7 years old and has never put a foot wrong apart from losing a bit of pressure over the course of the week. I've moved out of the flat and its been empty for about 8 months, boiler unused. Tried the Hot water at the taps today...
  19. M

    Worcester Bosch flue self tapers?

    Hi guys. Does anyone know where I can get hold of the self tapers for Worcester flue joints? Worcester want like £2.50 per screw. Just been to a local fixings place and they don’t have any. Any help would be great
  20. M

    Worcester Bosch sight glass issue?

    hi guys. I’ve heard about an issue with sight glasses on some of the Worcester’s but I’m unsure what the issue is. Any of you guys know anything about it please? What’s the procedure if you see one with a sight glass? Cheers guys
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