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combi

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  1. Stephen Tromans

    Electric combi boiler keeps cutting out.

    We have a 5 years old EHC combi boiler which switches the central heating off now and again ( no pattern that I can see ). To get it working I switch through the programme options once or twice and it starts up. It can be ok for weeks or days. Can anyone suggest what is wrong with it please...
  2. H

    Nest 3rd Gen works... Somtimes (Due-tec Combi)

    Ive searched quite a bit for this problem but cant find anyone else having a similar experience. Installed a 3rd Gen Nest on a Due-tec Combi HE a Range boiler. It had no existing thermostat on it. It was controlled by a Multifit Integral 24 Hour Electro-Mechanical timer. Everything works great...
  3. R

    Wiring a Hive receiver to a Vokera Linea Combi boiler

    Can anyone please help me to wire a Hive to a Vokera Linea Combi Boiler I have uploaded diagrams and pictures of everything I think is important. I think I should 1 Disconnect the Honeywell thermostat and bridge the two connectors where it says Room Thermostat on the wiring diagram. 2...
  4. N

    Switch fuse spures for combi boiler

    Can you run a 2.5mm twin an earth cable from the consumer unit to a 13A switched fuse spur then from that switched fuse spure on the feed side to another switched fuse spur so you have 2 switched fuse spures on one radial?? Reason for asking I’m getting a new boiler which is currently down my...
  5. L

    Help wiring bdr91 to baxi 600 combi boiler

    Hi chaps, Could someone advise on where point A and B on a bdr91 thermostat go to which terminals on a baxi 600 combi, does a go to terminal 1 and b to terminal 2 ? Or the other way round ? Also do i need to link L to A ? Thanks.
  6. R

    Hive receiver installation on Vokera Compact A Combi

    I'm trying to install a hive active heating into a Vokera Compact A Combi boiler. I think I understand the principles of the system but am looking for support on wiring the receiver to the boiler. The boiler electrical diagram can be found here http://qr.vokera.co.uk/qr?code=20099226 (figure...
  7. B

    5 core flex to combi

    Need to wire a supply to combi with LNE connections, and 2 volt free cores for room stat. I don't really see why I can't use 5 core flex for this, as all cores insulated to 500v, but plumber insisting they need to be in separate flexes...any thoughts? Cheers
  8. P

    BDR91 to Hive Single Channel Wiring (Baxi Combi 24)

    Hi All I have purchased a Hive thermostat/hub and am looking for a little advise. Currently wired to a BDR91 as below on a Baxi Duo-Tec Combi 24. I am ok with permanent live & neutral but just need advise on the other 2 wires. The green/yellow wire in "B" has been wrapped with red tape...
  9. T

    Nest on a Glow Worm 30CXI Combi Boiler fitting

    I bought a Nest and think i know how to fit it but want to check. I have a Glow Worm 30CXI combi boiler so only need to connect the heating side of things up and not the water. I have located a pink and a light blue wire which appears to then connect to the wire which then links to the...
  10. S

    UFH + Radiators + Combi

    Hello all, Im not an electrician, but please don't bite. I am renovating a house, and receiving conflicting advice / quotes from electricians, and don't know which is correct, and so I'm looking for a bit of confirmation. My plumber has installed the pipe work, and boiler. The UFH is yet to be...
  11. FatAlan

    Mitre / Chop / Combi / Flip Saws

    Bit off topic from the point of view of Electricians tools, but on the basis there are a few tool tarts on here that like their toys, plus the likelyhood that there are some damn good alrounders on here I thought I’d write a very long sentence! I need (do I really?) want to buy a Mitre saw that...
  12. S

    Combi Boiler reverse polarity

    Hi sparks. Gas safe plumber here please be gentle. Just went to a boiler breakdown. I traced the fault to the room thermostat so I linked it out on the pcb board in the boiler. The boiler is working fine now. 2 year old B&Q combi. While I was there I checked with my multimeter the supply...
  13. C

    Combi with a 300 litre hot water tank

    I have been asked to provide a wiring centre for a combi boiler providing hot water to two showers a 300 litre hot water tank and central heating. The heating engineer says he is going to provide two two valves. I'm just a little confused as to how the thermostat on the tank will call for the...
  14. J

    Nest wiring for combi boiler

    Boilers a glow worm home30c combi I have run a 5 core from boiler to where my spur+nest heat link will be Am I right by following: Spurs LNE into LNE of nest heat link Link out L to common (terminal 2 in heat link) Rt boiler connection to terminal 3 of heat link Then 12v from heat link...
  15. Rocboni

    Frost protection on combi boiler

    Quick hypothetical question, Combi boiler in garage with frost stat and pipe stat on return pipe, two zone valves for upstairs and downstairs, does the frost stat have to open one of the valves or just fire the boiler? Do they have a bypass valve?
  16. Malcolm

    New combi boiler & wireless programmer.

    Hi I don't usually get involved with central heating wiring systems, but I had a new boiler fitted last week and I thought it would be a good idea to get to know how they work. Could someone just check that i have got this right please. The boiler is an Alpha Intech 34C combi, the wireless...
  17. Dan

    Win a Makita Combi Drill

    Take the survey and you could win a drill!
  18. B

    Unused new combi boiler bought 6 years ago but not plumbed in.

    Due to illness I've fallen behind with my home renovation plans. I had mounted my new combi boiler (Sabre HE) 6 years ago but as yet have not plumbed or wired up any of the supplies to it. I plan to start running in the pipework soon. Is there anything I should be worried about given the...
  19. S

    Re L: Electromax Combi Electric Boiler Problem.

    Good Morning Forum. I have an issue with a customers Heatrea Sadia Electromax Combi Boiler, i was wondering if any one had much dealings with fault finding on those units. Im based in Aberdeen, going on 19 years self employed up here. 6 years ago we installed one of these Electromax Combi...
  20. N

    Nest Heat Link on a Worcester Bosch 280

    I have an old Worcester Bosch 280 combi. Currently it doesn't have a stat connected so the connectors on the board are N (Unused) 1 & 2 (marked as Room Stat) are jumpered, and I get 240V from 2 when metered out, but nothing from 1 (assumed to be stat switch on) 3 is unused and unmarked 4 is...

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