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combi boiler

  1. K

    Baxi 105e replacement?

    Hi all, our Baxi 105e is on its last legs i reckon. Yesterday it worked fine, this morning no HW. I re-pressurised the system then power cycled and 'reset' the boiler. Open a HW tap but all i see is the green power light on the 105e. Its had a fair few repairs over the years, so if we decide to...
  2. L

    Repressurising Greenstar 24i junior condensing combi boiler

    Hi, Partner and I have just got back from holiday to find our hot water and heating isn't working on the Greenstar 24i junior combo boiler. Cannot contact our landlord today (need hot water to wash up and shower) we're pretty certain the problem is the pressure on the boiler as it's at low...
  3. Siw81

    Combi boiler vibrates when water turns off

    I had my boiler serviced last month and he made a tweek to make it burn better. Since the service if the hot water tap is turned on and off before the boiler ignites we get 3 loud vibrating noises from the boiler, any idea what this is? Other than this it runs fine
  4. L

    Big Combi or System Boiler & Unvented Cylinder

    Hello People First time posting on here but reckon you have the expert knowledge I need :) We've just moved into a new house, 30s semi. It currently has a standard C/H and H/W system: a working, but ancient Potterton Suprima boiler, hot water cylinder and cold water feed in the loft. We're...
  5. M

    Biasi riva advance he

    Hi everyone, need some advice regarding my boiler, I had issues with hot water, sometimes not working, changing temperature while it was running, I thought it was temperature sensor. I have changed it but it made no difference. I've been told to clean heat exchanger as the boiler has displayed...
  6. M

    Hive Wiring for Worcester green Star 28i

    Hi all, I'm hoping someone can help identify the wires under the combi boiler. There was once hive installed however the previous owner has taken the reciever and install a standard danfoss thermostat. This is how it has been left. 15543993042235156073894454745445 by Matt Bezant posted 4 Apr...
  7. A

    Leaking flue on combi

    Hi, I have a Worcester green Star combi 30si. The component which I believe is the flue going outside the garage from boiler has a leak at two of the joints as you can possibly see in the attached pic. Simple question, is this a DIY'able fix or is it compulsory for this to be seen to by a...
  8. A

    Replacing an old dial thermostat with a Hive system

    Hello, I am trying to replace an old Honeywell T6360 dial thermostat with a Hive single channel link. I have an Alpha CB2028 gas combi boiler fitted with the optional clock timer...
  9. D

    Moving a boiler?

    Hey guys, just wanted to know whether it’s possible to move a Combi boiler about 10m into a completely new room? i’ve seen other posts where people have moved their boilers but only a few m’s away, would this be too far? it’s around 6 years old. Also, if it is, any idea on costs? thanks!
  10. I

    Hive Dual reciever & combi boiler

    i have Valiant Ecotech pro 24 ( 2011 ) model boiler and Hive dual receiver i wired up however heating wont switch off i assume its because of wiring and its not controlling boiler. my old relay box to wireless thermostat was wired up like picture attached. the Hive Reciever is wired up with...
  11. C

    WB Heatslave ii not powering up

    After switching my consumer unit off temporarily to check a switch, my boiler (oil WB Greenstar Heatslave ii combi, only a few months old) won't come back on. The LCD is blank and the wireless thermostat had a Fault A21 which just means it can't find its friend. Any ideas? I've checked the FCU...
  12. S

    New Worcester boiler pump noise

    Hi all, Just had a new Worcester Greenstar 32 compact installed. I’ve noticed that when the heating is on the pump seems to run intermittently, rather than constant. Is this normal for these boilers? It hums for a few seconds, then stops for a few, hums for a few, stops for a few and so on. I...
  13. Koch

    Cold, hot and gas pipes run too close to each other

    Hi, please see attached photos (blue: cold mains to boiler and kitchen after bathroom. Red: hot from boiler to bathroom. Yellow: gas to boiler. The other pipes are the radiator pipes that do run across under the pipes at the radiator ends - again too close to them) is this okay? I’m concerned...
  14. A

    Another Hive thread! Connecting to a Greenstar 30si combi.

    Another hive thread! Hi all wanting to replace my current digital timer/thermostat with a hive V2. I have a Worcester Bosch Green Star 30si Combi boiler. My current setup is as shown in the attached image. The thermostat is in my landing and boiler is in the garage. The boiler connects to a...
  15. I

    How much does a Diverter Valve and Cartridge cost for a Potterton Powermax HE 85 CP?

    I posted this question in September: https://www.diynot.com/diy/threads/diverter-valve.509393/ The answerer talked about diverter valves and cartridges. I have a few questions: 1) What the difference is between a diverter valve and a cartridge? 2) Why could the cartridge fail independently of...
  16. M

    Salus IT500 BM

    Hi. I have recently had a External Worcester Greenstar Heatslave II 18/25 External Combination Boiler Oil ErP installed which is controlled by a salus it 500BM I understand at the time, there had been a mix up and the incorrect Salus was installed and it should have been the salus it 500 and i...
  17. F

    Ravenheat RSF 820/20 Combi Boiler Problems

    Hi I am new to this site but wanted to ask a question about a fault which has arisen on my Ravenheat Boiler. In the last day it has stopped delivering hot water either to the taps or the CH. The pilot remains lit, the boiler fires up and I can hear the fan working. Occasionally I get about a...
  18. K

    Alpha C27 Combi Boiler over pressurises once or twice a day then vents

    System is gas central heating via a pressurised combi boiler system. The combi is a Alpha C27. Often the user is operating only two radiators. The balancing radiator and one other. Operating 2 out of 7 rads in total. Recently this combi has been de-pressurising once or twice a day soon after...
  19. A

    Main 30HE DHW problemo! Help!

    Good afternoon, New to this place as a Google search finds me a few threads on the Main 30HE combi, so thought I'd try my luck.. New house with a Main 30HE Combi, 12 year old. Seller was adamant it still worked, much to my dismay things went wrong from there. Been here since end of May and we...
  20. N

    Electric combi

    Go on then slate them lol, I am aware of the kw price difference. So I live in a bungalow well of the grid, gas mains never gonna be an option unfortunately. Bought the house three years ago. Installed a biomass system, burn logs get hot water and it heats the rads. So we are building an...
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