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  1. P

    Worcester Bosch Greenstar Regular Boiler - Always ON

    Morning all, I've noticed very recently that our Worcester Bosch Boiler is constantly ON and making a fair bit of noise. The flame is not on, but certainly sounds like the pump is running, AND the water temperature does seem high considering we've not had any demand for it for a good 48hrs or...
  2. C

    Worcester Bosch Heatslave 26/32 (Oil boiler 2007) Flue perished

    Oily smell from boiler recently before failed. Great plumber sorted though when opened external baffle at front of sealed flue the internal spring like tube lining outer insulation had all perished. Barn conversion with thick walls (763mm). Worcester Bosch say Flue Kits are obsolete and...
  3. L

    Worcester Bosch Heatslave Boiler pressure issue... any thoughts...?

    Greetings. I have an external Worcester Bosch Heatslave boiler and have a question about pressure. The boiler pressure was set to 1.5 during a recent visit by a plumber (as it seemed to have dropped and was hovering between the green and red zone) . A few days later I turned the thermostat down...
  4. L

    Worcester Bosch Heatslave Boiler pressure issue...

    Greetings. I have an external Worcester Bosch Heatslave boiler and have a question about pressure. The boiler pressure was set to 1.5 during a recent visit by a plumber (as it seemed to have dropped and was hovering between the green and red zone) . A few days later I turned the thermostat down...
  5. M

    Worcester Bosch Weather compensation

    Hi I'm new here so go canny with me. Hoping that someone can help with the following concerning weather comp, it is a Worcester Bosch comfort+ll control and in the menu it asks to set these values.These are what my thoughts are, are these correct. I am aiming for around 20c for the room...
  6. A

    Worcester Bosch help

    I have a greenstar 35cdi combi boiler that when the thermostat calls for heat. It will fire up heat to temp and then drop down to 41* on the boiler display and then kick back in again. I have checked all wiring and the zone valves. What else could it be? anyone seen this before
  7. T

    Worcester Bosch Greenstar knocking noise

    Hello, I have just moved in to a new flat this week and have a problem with noise coming from somewhere around the top of the boiler. It's a loud clicking/knocking sound that lasts about a minute, stops for 20-30 seconds and starts again. It seems to happen at night, starting in the evening...
    • tchiscilo
    • Thread
    • bosch greenstar noise worcester worcester bosch
    • Replies: 1
    • Forum: UK Plumbers Forums
  8. D

    Main Eco Compact vs Worcester Bosch 1000

    hi everyone a local installer has recently quoted me £3,660 for a complete install using the main eco compact 25kw boiler i have also been waiting for more feedback and reviews of the new worcester bosch 1000 which seems to be getting quite positive initial feedback, and a few criticisms which...
    • Deleted member 131795
    • Thread
    • bosch compact main worcester worcester bosch
    • Replies: 24
    • Forum: Central Heating Forum
  9. D

    Worcester Bosch Magnetic Filter Running Water Noise

    Just had a new Worcester Bosch Greenstar 30Ri fitted with the magnetic filter. When the system is running the boiler is so quiet but there is a sound of trickling water through the filter, loud enough to hear quite clearly and is pretty annoying. I wouldn't of thought trapped air would sound...
  10. H

    Worcester Bosch Oil Heatslave Switch On Problem

    Help Please We have a 2005 Worcester Bosch Oil Heatslave 26/32 that is fitted with the optional timer. Recently we have a problem. To get either the heating or hot water to switch on the timer has first to be set for both to be ON but this just prepares the unit as neither will switch on at...
  11. J

    Worcester Bosch 35CDi - All lights flashing problem

    Hello, I have a Bosch 35CDi, and today found all the lights flashing on the front. Normally I can reset the boiler, but this did not work. There isn't an error code, since even the error code display is flashing. I have searched the internet but cannot see this problem elsewhere, since every...
  12. M

    Water leak Worcester Bosch Heatslave 25/32 External

    Noticed today that the ground looked damp around the outside of our Worcester Bosch Heatslave 25/32 External Boiler. Took the cover off and warm water is pooling in the base of the unit. Can't see an obvious leak and all the components are dry. I'm guessing it's the thermal store leaking. Is...
  13. S

    Wiring a Hive Receiver to Worcester Bosch Greenstar 4000 30kw

    Hi Everyone - despite my best efforts I can't seem find a clear answer on how to wire a single channel Hive Receiver to a Worcester Bosch Greenstar 4000 30kw. I've attached 2 photos showing the connections on the receiver and boiler. With great hope you experts out there can help - thankyou!
  14. H

    Does Worcester Bosch 40cdi 2013 boiler support weather comp?

    Hi there, thanks for looking at this post. I've got a WB 40cdi heat only boiler which was installed around 2013. I've attached the model number. I'm trying to work out if there is a weather compensation feature which will automatically adjust the flow temperature down on warmer days? I don't...
  15. Andrew Garrett

    Worcester Bosch i30 Greenstar PRV and Expansion Chamber replacement

    Hi all What kind of time is required to replace the Pressure Relief Valve and the expansion chamber in a 6 year old Worcester Bosch i30 Greenstar? Is this a 3 hour job? Also what kind of price would be reasonable? I am using a new gas engineer and I want to verify that his bill is fair. I am...
  16. B

    Worcester Bosch Greenstart 36 cdi filter installation

    Hello all. During a recent service to a Worcester Bosch Greenstar 36 cdi compact boiler within my property, a filter was removed by the plumber. (see photo). I was told it was easy enough to purchase a new one and reinstall myself. Despite a search I can't find a replica filter anywhere. Is...
  17. M

    Honeywell Evohome with Worcester Bosch Greenstar System Boiler

    I need a little help if possible as I am trying to check that my current system is running efficiently but not really sure how to check, sorry if this is a long one and I have tried to contact a Honeywell connected specialist but they dont seem interested unless installing a new system and the...
    • Mark8par
    • Thread
    • boiler bosch greenstar honeywell system worcester worcester bosch
    • Replies: 14
    • Forum: Boiler Advice Forum
  18. R

    Worcester Bosch 28cdi diverter valve

    Hi I am replacing suspect diverter valve on old Worcester Bosch 28cdi. There is a small black slotted screw there (see the photo). Could someone advise me what is it for, is it an adjustment? Thank you very much Rafal
  19. D

    Worcester Bosch 542/i - failed sweep test on electrode plate?

    Hi I've just had my annual maintenance check on my boiler (in title), it will be 8 years old in May this year and is (I think) still under guarantee as I get it checked annually with British Gas (they installed it and said the guarantee would be extended until it is 10yr old if I kept the annual...
  20. J

    Worcester Bosch 24SBi

    The flow loop connector is leaking but is now obsolete. I ordered last one available and it has gone missing in transit. Any ideas or possibly a secondhand one?

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