electronic

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  1. H

    Horstmann electronic 7 only heating water using boost not timed off peak....

    The unit only heats water using the programmed boost and when pressed in the 1 2 or Cont boost function. I have checked the off-peak time which is set to 2.30-7.30 am - this is when the Horstmann should do its thing...? But it's not heating the water so only the top cylinder works on boost, the...
  2. Accelleo

    Electrician Jobs Electronic Engineer Role - Maidenhead/Greenford Area

    Welcome to Accelleo! We are excited to present an excellent opportunity for Electronic Engineers to work within the Security and Defence space. Job Brief: The Electronics Engineer will be responsible for research, design, and development of digital and analogue electronics within the hardware...
  3. PCBWay

    PCBWay 6th Project Design Contest - Participate and get a free Raspberry Pi Pico*!

    So far, PCBWay has successfully hosted 5 editions of design contests. Under the diverse themes of previous contests, we have received numerous high-quality and creative projects, allowing us to appreciate the countless fascinating ideas in the minds of engineers. We have always believed that...
  4. _q12x_

    Electronic Lock using 74LS74 DTFF

    Im making this cct for fun. Ive seen it in a video on youtube, with different IC's. So I decided to adapt the cct to what IC's I already have. And it is working perfectly, both in simulator and in reality (on breadboard). But while building it, testing it, and playing with it, I noticed a...
  5. D

    Information on purchasing electronic components

    I would be interested to hear from members where they purchase there components from?, especially if you can buy just one or two, and not have to buy ten at a time. Also I would like to know which manufactures of electronic components that member’s use, because of the quality of there products?.
  6. R

    Electronic Ballast Life

    Hi: I am the custodian at Peru Public Library, Peru IL. About 20 years ago, I installed about 150 new General Electric brand electronic ballasts and new 48" T8 size fluorescent lamps. This replaced magnetic ballasts and T12 size bulbs. We received a grant to cover the cost as the conversion...
  7. C

    Horstmann Electronic 7 - No hot water, no LED indicator

    Hi all, I've come back from a 5 day holiday to no hot water, and the Horstman Electronic 7 controller on (LCD display working) but the neon indicator does not turn on during off-peak hours or when the boost button is pressed. It's looking like it's going to be a couple weeks until I'm able to...
  8. R

    Horstmann Electronic 7 Water Heater - not working

    Hi all, Yesterday I returned home to no hot water after a few days away. After a brief inspection it seems the fault lies with the Horstmann Electronic 7 Water Heater. The display is still visible but the controller is completely unresponsive. If I select either of the following buttons...
  9. C

    Horstmann Electronic 7

    I have the above control which 99% of the time works fine. Occasionally I wake up and the powe has gone in the night with the result of no hot water. Switch the master switch off at the fuse board and leave for 5mins before switching back on. Reset the clock and then Boost to get some water, all...
  10. hodge228

    horstmann electronic 7 power/display issue

    Hi All, I have been having an odd issue with My Horstmann Electronic 7. It had been working normally and then I found that the display had turned off (seemed like no power). This is despite the mains being on. When switching the main switch off, the display then comes back, albeit with no power...
  11. P

    Question about Electronic 7 Horstmann

    Hi everyone! I just moved a new flat last week and this is my first time using boiler heater. And I am confused with the use of that timer. I have never looked into it until hot water running out yesterday. After pressing 'BOOST' (Pic 1), I got the hot water after awhile. In the next day, when...
  12. Lucien Nunes

    MEET - the Museum of Electrical and Electronic Technology

    It's happening - the new way to discover and explore every aspect of electricity and electronics. An interactive exhibition and demonstration of everything from vintage arcade games to power station machinery to scary fuse boxes to bizarre electromedical quack gadgets. The project has been...
  13. T

    level 4 hnc in electrical and electronic engineering.

    Hi I’ve just started a level 4 hnc in electrical and electronic engineering. I’m wondering if anyone can help me with the maths assignment
  14. J

    UK Horstmann Electronic 7 only working with boost, not timer

    Hi, We have just moved into a new flat with the old Horstmann electronic 7 timer for our immersion boiler. We just moved from a flat with the exact same system and never had any issues. We have set the timer and the times for the off peak boiling and have had no hot water for 3 days. The boiler...
  15. E

    Easy pulse generator

    Hi, I am trying to make a short pulse generator from any pulse input. By this I mean I want a final output with a fixed pulse width no matter what input I have. I tried to do it with a not gate linked to a and gate. It did work but apparently the solution can be based on ONE component only...
  16. M

    Horstmann Electronic 7 - Boost not working

    Hi all, As an electrically illiterate person I've found a lot of the posts on this forum helpful when fixing things round the house. I was hoping I might get some guidance on any next steps before calling someone in about our immersion heater. Context: we recently switched to a smartmeter for...
    • meezrob
    • Thread
    • boost electronic horstmann not working water immersion working
    • Replies: 13
    • Forum: UK Electrical Forum
  17. Marvo

    Automobile Electrical & Electronic System 2004

    Marvo submitted a new resource: Automobile Electrical & Electronic System 2004 - Automobile Electrical & Electronic System 2004 Read more about this resource...
  18. J

    Horstmann electronic 7. Cant get hot water regardless of what I do

    I have moved in 3 days to a flat which seems to have a lot of problems. I have not had hot water yet and the agent tells me I will pay for a call-out if it will be something simple and I could have found it on the internet.. So I am paranoid. The red light is on. I usually would have a shower...
  19. J

    TIMED led light constantly red on Horstmann electronic 7 controller

    Hello I have had a new boiler and controller installed a couple of months ago and my electricity bills have increased quite significantly ever since. I have a horstmann electronic 7 controller and its TIMED led light is constantly switched on throughout the day / night even if I switch off the...
  20. H

    how would i go about working out this question?

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