fault

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  1. The apprentice

    Surge protection/ark fault detection

    Hi there just a few questions I have to do an install of a small ware house that was built in 2021 January (finished) client that is going into the warehouse specialises in laboratory. Now he has a lot of 3 phase machinery like mixers and small hoists which are all 3 phase the building adjacent...
  3. D

    Central heating fault.

    So a customer changed his own stat and wired it wrong and blew 3/4 fuses. Then heating was stuck on so I changed the programmer and this resolved the problem so I think the short circuit had damaged programmer. Now 5 days later the the hot water isn’t heating haven’t been yet. All I can guess...
  4. littlespark

    UFH actuator fault. Causes?

    What can do this to an actuator? Overvoltage? Wear and tear? Stuck pin on the valve? This is in the German built kit house I’ve done work in before. The actuator controller is powered separately to the central heating boiler.. each room has a stat, which then opens one or more actuators for...
  5. V

    Maddening MCB Tripping fault

    Hate these. Been called out to troubleshoot a tripping MCB. It's a house I've been to before and I know the wiring is a real dogs diner, but anyway. Got an MCB that's tripping out with no appliances plugged in. The sockets themselves are not in a great state, however continuity and insulation...
  6. HappyHippyDad

    An interesting fault finding job!

    1pm, quite happy doing my planned job. Builder then asks if I could go out to another job where the top lights have all tripped out. I like peace and quiet when fault finding, plus I like to plan it in advance and always first thing in the morning as you know it can get pretty complicated and I...
  7. littlespark

    Strange intermittent fault on 13 pin socket

    my caravan isn’t lighting up tail lights, but all other lights work fine. However… while testing, I got a strange sequence of events. I’ll also point out that the 13 pin socket has the left and right tail lights on different pins, so whatever it is, is affecting both sides. Ok.. with...
  8. Raptor0014

    Weird fault that no-one can work out the issue.

    Evening all. Been at a property the last couple of days that had suffered damage due to a surge. I got the power back on all circuits apart from the upstairs lights as it immediately trips. Long story short I broke the circuit down and re-added room by room to narrow down the problem area...
  9. S

    Curious fault after recent move

    Hi All Let me start by saying I have my 2365 level 3 but never worked in the industry so my knowledge is limited. My partner and I recently purchased and moved in to our first home Since moving in we've had a strange electrical issue and I'd appreciate some advice about what could be causing...
  10. Highspark24/7

    Megger 1721 fault help

    I have a megger 1721 and occasionally when I’m doing testing a large amount of circuits the continuity locks on even with no leads attached any one had anything similar
  11. R

    Solar StecaGrid 2010+ stays on sleep mode ? No fault messages and all panels generating. Any idea's

    StecaGrid 2010 remains on sleep mode, fuses good, panels generating and no fault messages. Any suggestions
  12. H

    Dumb questions about PEN fault and solution

    Sorry if these questions are dumb, but I thought I'd ask you guys as I'm brand new to this field. I was watching this video from John Ward and had a few questions about it. 1. In a TN-C-S system, if there was a PEN fault before the service head, the current would go through the protective...
  13. P

    11kv pole loop fault, over voltage ?

    Hi first post, I'm a pretty well experienced electrician of 15 years now working solely in Agricultural electrical We have a lot of voltage sensitive equipment on our farms which run auto ventilation and alarms ect Today we had a huge bang from the 11kv pole transformer on one of our sites...
  14. S

    Solar Install developed fault

    I have a 12 panel array … BenQ 330W panels, Solar Edge Micro-controllers and Inverter. On Solar Edge App, shows 1 panel as not generating any output. Panels & Solar Edge kit all under warranty but installation company has ceased trading … what’s my best approach, get an experienced PV...
  15. timhoward

    Kitchen fitters.....

    No photo's as customer is already in dispute with kitchen fitter and was very strict about it! I went to look at what would be involved to add a missing dishwasher point in a brand new kitchen. House is TT. Kitchen is on a B16 radial. Hob and Cooker are on their own circuit. It's only sockets...
  16. S

    Classification of RCD - for Additional protection only or Fault protection?

    I would appreciate some opinions on the following situation... I have been asked to comment on an EICR for a local community resource (church hall used by various groups of all ages). During an EICR on the TN-C-S installation the testing of a ring final circuit gave R1+R2 and Zs(db) values that...
  17. HappyHippyDad

    Fault find or rewire?

    Just spent 4 hours tracing out a lighting circuit to try and find a fault. I came across a switch that was switching the neutral. This threw me as I was getting 230V on the S/L (to earth) at the light when I switched the light off!!! I then realised the Neutral was being switched, which I...
  18. M

    Earth to Neutral 2 ohm with Multimeter cable disconnected from switch board.

    Earth to Neutral 2 ohm with Multimeter on alighting cct. The cable disconnected from the switchboard. I am new here and appreciate everyone looking at this post. I come from an Industrial Electrical background and would like advice on fault finding. My house has 1 lighting RCD. There seems to be...
  19. S

    Kitchen LED Strip Light Fault

    Hello, We moved into our house 2 years ago and until recently the kitchen lights worked fine. The LED strip lights are on a dimmer switch, when pressed (full power selected) the LEDs come on briefly and then go off. On investigation the LED strips are driven by an Aurora driver (this model...
  20. S

    Hi, question on Fault finding L-E

    Hi all, what appliances could show really low ir results between L-E? And give a Kohm reading instead of ohms reading L-E? Thanks
  21. S

    Zs and Ze - both called 'Earth Fault Loop Impedence'?

    Can someone explain this to me? The regs book calls Zs 'Earth Fault Loop Impedence' and the On-Site Guide calls Ze 'Earth Fault Loop Impedence'.

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