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worcester bosch

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  1. W

    Correct Wiring for Honeywell chronotherm ct900 to worcester Bosch CDi 36kw

    I Wired a Honeywell programmer to a worcester Bosch 36 CDi , just to check it's wired right. L1 and L2 go to terminal 1 and 2 on the low voltage side. Terminal One has a breaker switch pic on the face of the connection, terminal 2 has a pic of a programable room thermostat pic on it. L1 is...
  2. G

    Worcester Bosch MT10RF

    We have a Worcester Bosch greenstar boiler and a MT10RF thermostat.the clock on the MT10RF is not working,my question is can I just buy a new MT10RF without haveing to replace the Boiler Receiver,I do understand that to buy new, the Thermostat and Receiver come as a pair,but if the receiver...
  3. B

    Worcester Bosch tool promotion......what to get.

    I have 40 points to spend, cant decide (yes its a nice problem :-) ) http://www.worcesterpromotions.co.uk/_var/file/3/pwrpts2014-book.pdf
    • Bunker
    • Thread
    • bosch tool worcester worcester bosch
    • Replies: 5
    • Forum: Plumbing Tools
  4. G

    Worcester Bosch Greenstar 37 CDi: Cycling and noisy radiators

    Hi Forum, We've moved into a house with a WB Greenstar 37 CDi boiler installed in the attic and we have a few issue with the heating system, that may be interrelated: When CH is on, the boiler appears to be 'cycling' continuously between hot and low temperatures. It heats up to 90°, then...
  5. A

    Worcester Bosch Greenstar 28i Jnr fault?

    The boiler appears to be on, the front panel is warm, but there is no heating or warmth in my radiators. The gas appliances and hot water are all fine. I've increased the pressure to 1.5 bar, turned the boiler off and on again (the green light comes on when the boiler is restarted, then goes...
  6. F

    Worcester Bosch Green Star combi

    Morning all Had a call from a custard a couple of weeks ago about the above making a funny noise To cut it short, when I got there the condense trap & internal condense hose was full with black grit. Cleaned it all out & boiler was working fine. Had another call yesterday about the same...
  7. C

    Worcester Bosch 28cdi Ignition Lockout

    Hi, My current problem is Ignition Lockout on heating - but not on hot water. The boiler is a worcester Bosch 28cdi. The history follows... We had a problem with the hot water not initiating the boiler, which got steadily worse, to the point where we had to run several taps to get it to...
  8. R

    Heads up - Worcester Bosch power tool promotion.

    Hi All Just a quick heads up. WB will be starting a promotion on 21st July giving away powertools with boilers. Some of them are quite tasty, and FREE tools are my favourite brand. :) If you were thinking of buying a WB boiler tomorrow or the next day, you might want to either put it off, or...
    • Ray Stafford
    • Thread
    • bosch power tool worcester worcester bosch
    • Replies: 12
    • Forum: Plumbing Tools
  9. B

    Worcester bosch 15ri - acting strange after flooding...

    Morning guys, just after a little advice on a WB 15ri. Long story short the condense was fitted into a rain water pipe that had plants growing down from the gutter above... It blocked and the boiler backed up until it flooded. So it's the second time it has happened, WB replaced some bits under...
  10. J

    Worcester bosch timer

    Hi all, I have just taken on a holiday flat in Devon, and there is a combi with built in timer, I need to find the make of it to find the instructions for the visitors
  11. T

    Any Worcester Bosch installers on here?

    I'm looking at the following WB combi boilers - 28CDi Compact and 30Si Compact, both seem similar dimensions. Other than the output, what are the notable differences between these 2 models - the CDi and Si? There's only 2 boilers in the Si range, so I'm wondering why the don't form part of the...
  12. E

    Worcester Bosch Pressure releif valve snapped off

    I appear to have snapped this off, though it turned like a tap, but as it snapped off in my hand and i looked at it I realised it's not supposed to turn like a tap. How big a job is it to put a new one in? can it be done without taking the boiler off the wall? this is the part here i...
  13. P

    Worcester Bosch 28cdi compact controls

    Hi chaps. Just has a Worcester Bosch 28cdi compact installed. All working fine, but found something that's confusing me. The flow control for the CH apparently can go up to 82.... whilst the DHW can be turned up to 60. User manual tells you this and basically just tell you to 'turn the...
  14. G

    worcester bosch accredited installer course

    Hi Can anyone tell me what it is i will be doing and what they will test me on so i can study to freshen up a bit done my acs 4 years ago!! all I know its a assessment course run by logic so I can become a accredited installer
    • Guildfordboiler
    • Thread
    • bosch course worcester worcester bosch
    • Replies: 10
    • Forum: Plumbing Courses
  15. R

    Worcester Bosch 28CDi - what's a normal system pressure rise from cold to hot?

    Boiler is in daughter's recently acquired house. System has 7 single panel radiators. With the cold pressure on 1.2 bar, it rises pretty quickly to about 2.5 bar when hot. I found my neighbour has exactly the same boiler and that barely moves - a couple of tenths of a bar. Is the pressure...
  16. M

    Boiler queries - Worcester Bosch Compact

    I have been trying to decide on what boiler to go for - I think my head is about to explode - but I have to make a decision. Some background - I have a combi boiler - 4 bedroom house with 9 radiators (of varying sizes - 3 big doubles and the rest singles) My current boiler is an Aristion Clas...
    • mo7
    • Thread
    • boiler bosch compact worcester worcester bosch
    • Replies: 28
    • Forum: Boilers
  17. Y

    Worcester Bosch MT10RF / mechanical RF thermostat - clock not working

    Hi. We moved to a new house where there is a Worcester Bosch boiler with an MT10RF / mechanical RF thermostat. The other day I noticed the heating hadn't come on when the clock was set for it to come on. I then realised the clock wasn't working at all. I replaced the batteries, but the clock...
  18. S

    New Worcester Bosch 24i boiler - are these normal noises?

    Have just had a new Worcester Bosch 24i boiler fitted. It heats up the house and the water lovely. However, the boiler is not very quiet when it's working. It makes a constant droning noise when it's on (not loud but loud enough to hear). As it is a brand new boiler I was expecting it to be...
    • Sprintmancolin
    • Thread
    • boiler bosch worcester worcester bosch
    • Replies: 9
    • Forum: Boilers
  19. B

    Worcester Bosch 40CDI - Bypass Circuit help required

    Hello, We've had this 40CDI boiler fitted in place of a Potterton boiler that failed after 16 years of service. The system is configured as an S plan as I would understand. We've got a fairly large house with 3 bed's and loft office. Total radiator count is 13, all have thermostatic valves...
  20. C

    Vokera boiler verses Worcester Bosch does modulation need to be below 7kw?

    I am looking at getting a Worcester Bosch 34cdi but some people are saying it is too big for a 3 bed roomed house. My concern is I have a large bath and I want the water to run off quickly, at least 12 to 14 liters per minute. I have the flow rate to support this. I have heard things about...
    • coldboiler
    • Thread
    • boiler bosch vokera worcester worcester bosch
    • Replies: 13
    • Forum: Boilers
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