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  1. Michael Groves

    Worchester Bosch error code EA - Part 2

    Agreed
  2. Michael Groves

    Worchester Bosch error code EA - Part 2

    I’m happy to be corrected on anything I say below. I am going to ignore the requirements for Gas Safe Engineers as we are not talking about this, I am solely looking at what you can legally do in your own home. The Gas Safe Register is run by Capita Group, they were appointed by the HSE in...
  3. Michael Groves

    Worchester Bosch error code EA - Part 2

    My trade is no secret, nor is the fact that I am also a landlord. I do not hide behind an alias. I stand by everything I say, if I am proven wrong I am happy to admit it as you will have seen in previous posts. I frequent forums to learn and help others. It is the job of my CPS assessor to...
  4. Michael Groves

    Worchester Bosch error code EA - Part 2

    Just to set the record straight, yes I am a spark and part of a competent person scheme. I am also a landlord, Advanced PADI diver and swam 800 meters at school and have a badge to prove it! What relevance this has is beyond me. Please keep this professional. It was my own boiler, all my...
  5. Michael Groves

    Worchester Bosch error code EA - Part 2

    Thanks for links, I’m gonna have a read over the next few nights. Then eat humble me thinks.........
  6. Michael Groves

    Worchester Bosch error code EA - Part 2

    Please keep on track, what was dangerous and what law was broken. I'm not being difficult, I honestly want to know?
  7. Michael Groves

    Worchester Bosch error code EA - Part 2

    I'm not sure why the moderator has blocked further posts to my last thread but I think if someone says something is dangerous and illegal it would be good for everyone to know why? Worchester Bosch 40cdi Error code EA So my question is what was dangerous, please be specific and what law has...
  8. Michael Groves

    Worchester Bosch 40cdi Error code EA

    I notice someone had a problem with sticking regulator, how would you know if this was the case. I tested 24mbar at gas meter with manometer. Can I rule this out. Boiler will not run so I can't tell if pressure drops too much?
  9. Michael Groves

    Worchester Bosch 40cdi Error code EA

    no
  10. Michael Groves

    Worchester Bosch 40cdi Error code EA

    I have a Worchester Bosch 40 CDi with error code EA. I've checked all the usual suspects but now I'm at a loss. I can hear the boiler clicking but it never fires up. Below is what I've tried so far; Clean condensate Replace electrodes (ionisation really worn) Replace ignition lead (rubber...
  11. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Apparently modern condensing boilers are able to carry a higher temperature than older boilers, so a 15mm pipe is able to carry 9kw, a 22mm pipe 24kW and 28mm pipe 70kW. On that bases if my heat load is only 17kW I only need run 22mm pipe, I don’t need to run any 28mm?
  12. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Sorry I can't find the article, what I meant was the return temp needs to be much lower than supply temp.
  13. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Just been reading modern boilers prefer a W or S-Plan where each circuit gets 100% of boiler. Most 300 & 400 cylinders have a reheat time of 38-45 minutes. Therefore giving Hot Water 100% for 45 minutes every few hours should not affect Central heating that much. I was also reading if you give...
  14. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Water Pressure is very good in the property, they'll be no problem. Agreed it's one or the other with W-Plan, it'll take some tweaking to get it right. But remember with HMO, they're not all rushing out the door to get to work, showers are spread throughout the day. For those that wash anyway...
  15. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Seems to be various heat exchangers, Gledhill 300L has 30kW heat exchanger !!!, I'm looking at Grahams Therma. I'll just go for a single cylinder.
  16. Michael Groves

    15M pump required, one large Vs 2 small in series?

    You make some very valid points, I think I need to wind this back to make sure I'm getting correct results. Calculating head is complicated, I'm now thinking about a single boiler using W-Plan. If I also have a 400L cylinder the heat exchanger is 17kW. This way I can use a single 18kW boiler to...
  17. Michael Groves

    15M pump required, one large Vs 2 small in series?

    It's a HMO, 11 tenants. Currently only 3 showers, but every room has WHB. There is one communal kitchen. I plan to install maybe another 5 private showers in the larger rooms. Ultimately they'll still be 11 tenants max, but you could get a larger simultaneous draw off. I must admit I've...
  18. Michael Groves

    15M pump required, one large Vs 2 small in series?

    I used the default figure in the sizing resistance in copper tube. It was tiny. 3.5M is much bigger. Yes looking at 40CDi regular, but with Robo kit. I thought 35CDi system was just too tight. In that case I would need 8.3M head. I think 30kW would be too small, I also have 500L water cylinder...
  19. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Yeah managed to calculate that, I’ve not looked at curves yet as still debating head calculation. But I assume Magna3 autoAdapt takes care of a lot of that. What gets me if a 5 storey house with 22 rads only needs a 15-50, than most average homes are massively over pumped as this is fitted...
  20. Michael Groves

    15M pump required, one large Vs 2 small in series?

    Yeah got that, added the ***ulative figures of all shared pipework.

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