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worcester

  1. Grifter

    Lp20rf not firing up cdi35 worcester bosch boiler

    I recently moved into a flat with a Worcester Bosch CDi 35 Compact (or Classic System maybe?) and the thermostat on the boiler was broken (the thermostat was visibly damaged). I replaced it with a Drayton LP20RF receiver and thermostat. The boiler guy came round once other work was completed to...
  2. P

    Worcester green star 30si fault

    We have a Worcester green star 30si boiler Hot water is fine. Ch temp is set at 70 degrees but boiler heats to 68 quite fast then takes ages to heat to 72 when it finally pumps round system, Seems to be on constant low burn?
  3. TTGASSERVICES

    air problem with Worcester life 8000 regular

    Has anyone had any experience with the drain off/bleed valve on the primary return ,adjacent too main heat exchanger on Worcester life 8000 (45kw) regular ? I want too replace the 3/8 threaded drain off /bleed valve with a AAV ,has anymore does this? large system 28 rads 3 floors ,sealed...
  4. N

    Worcester GreenStar 2000

    Hi everyone! Would greatly appreciate advice. I am visiting my elderly parents to find that their boiler is on the blink. As per the attached photo, the small box to the right of the boiler unit has a flashing green light (located at the top). The boiler switches on but then randomly switches...
  5. K

    Worcester boiler losing pressure only after boiler had been on

    My Worcester boiler is losing pressure. It only happens after the boiler has been on and it loses approx 0.5 bar each time. The expansion vessel was replaced last year and no improvement, I have checked the rads, no issues, also no obvious water patches on walls ceilings etc. I have also used...
  6. T

    Water not heating. Worcester Greenstar 30CDi

    Hi, I have a worcester greenstar 30 CDi Classic regular. The central heating is working fine but the water is not heating. If i put the system off for about 10 mins and start it up again it still does not heat the water. I am not getting an error code. Where do I start? thanks teslacar (BTW...
  7. S

    Worcester Boiler - Fault has the engineer stumped (video)

    Hello, My mum has a Worcester Greenstar HE30 boiler (15+ years old). Since its last service (and possibly coincidentally) it has been making a booming/banging sound randomly. This is a noise like a pocket of gas igniting and can be loud enough to make you jump. It's been impossible for the...
  8. S

    Upgrading Worcester Bosch 440 CDi ERP to weather compensation

    Hello everyone, I have a Worcester Bosch Greenstar 440CDI ERP installed in my cellar with EPH room thermostats, for 2 zones of heating in my house. These controls are a bit basic as they only allow one temperature and basic on/off times. I have seen the FW100 weather compensating controller...
  9. S

    Worcester Bosch System 8000 - Radiator symbol etc

    Hi I have a Greenstar 8000 Life 30kw system boiler and 250litre indirect unvented cylinder. The programmable Danfoss time clock is split Rads (controls upstairs rads) Hotwater (controls HW to cylinder). Ground floor is UFH and has a separate wireless Thermostat that kicks it on and off. All...
  10. J

    Worcester Bosch 30Si new room thermostat install

    I've got a Worcester Bosch Greenstar 30Si combi boiler and I'm trying to replace the room thermostat which has a faulty display. The faulty thermostat is a DT10RF optimiser which is discontinued so I purchased a Comfort 2 RF which is supposed to be the equivalent replacement. It should be a...
    • JasonC
    • Thread
    • bosch install room thermostat worcester worcester bosch
    • Replies: 1
    • Forum: DIY Plumbing Advice
  11. K

    Worcester Bosch boiler not working for hot water

    My Worcester Bosch boiler works for the central heating system but doesn’t turn on for hot water. On the boiler the chimney sweeper icon is flashing and then 100. Not sure what this means or what I need to do? Can anyone advise as I’m clueless
  12. grumpydad

    Baxi 836 Vs Worcester Bosch 8000 35kw

    Hi all. My glowworm e50 has seen better days. Situation = 4 bedroom detached house, header tanks in the loft, all the rads are singles, they are all the originals from 1996. No TRVS. Some are rusted on the bottoms. Vented heat only. Essentially, it's time to spend some money. Got two...
  13. P

    Intermittent Hot water issue with Worcester Bosch Greenstar 35 CDI

    I have a 16 year-old Worcester Bosch Greenstar 35 CDi combi boiler, which is recently suffering from intermittent issues with the hot water. I usually get the shout from a family member who’s in the shower and found there’s no hot water. If I’m near the boiler when this happens, I can see the...
  14. J

    How noisy is a Worcester Bosch 39CDi boiler?

    We’re thinking of replacing our veritable Ideal Mexico Floor Standing Boiler (installed by me in 1985 and pretty much reliable ever since!) with a Worcester Bosch Greenstar 30CDi boiler. Question: How noisy is it? We’re OK with the noise from our old boiler but we’re worried about any...
    • John Stuchbery
    • Thread
    • boiler bosch noisy worcester worcester bosch
    • Replies: 2
    • Forum: Boiler Advice Forum
  15. M

    Worcester compact service tool

    Hi all. Got a few of these boilers coming up to 4yrs old and want to know if anyone has used something other than the recommended service tool which costs £57?
  16. I

    Cost to repairing a leaking Worcester Bosch Combi Boiler flow turbine

    Hi there - could someone please tell me what is a reasonable price to pay for a plumber to repair a leaking Worcester Bosch combi boiler flow turbine, pls? Ta!
    • iannutt
    • Thread
    • boiler bosch combi combi boiler flow leaking worcester worcester bosch
    • Replies: 3
    • Forum: Boiler Advice Forum
  17. D

    Worcester boiler pump runs for hours

    Hi all, We've bought a property that has a Worcester Greenstar 37CDi boiler installed, with an old British Gas RS2 Thermostat linked to it. I'm not clued up on boilers in any way, though I'm quite handy with mechanics and always like to learn how things work. The problem: The internal Bosch...
  18. A

    Worcester Bosch Greenstar 30 CDi - Pressure loss

    Hi all, Recently moved into a new house and noticed the Greenstar boiler has low pressure on the dial. Quick Google suggests using a key, valves, or fill loop to increase the pressure. Only problem being is I don't have either of those things. Any help would be appreciated. Cheers.
  19. W

    Worcester Junior 28i Faulty PCB Board

    I need some help with a Worcester Junior 28i gas boiler and I'm hoping someone here may have came across this fault before ... I have checked the following: 240v at supply connections All internal push on connections are correctly fitted to the PCB board The transformer is giving the correct...
  20. Jpm757

    Worcester Bosch Cycling Issue

    Good afternoon everyone, I am hoping you may be able to help me. I have a Worcester Bosch 19/24CBI boiler and it keeps cycling. When trying to heat the hot water (same for heating) the boiler is off more than it is on and thus unless timed for a very long time never gets the desired outcome. In...

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