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  1. C

    Car Radio Causing Speedometer Problems

    Hi, I'm sorry if this seems a bit of a mess. I've got a 2005 Rover 25 that I bought a couple of years ago. It came with a Blaupunkt Freestyler Travepilot E CD-Player which I quickly replaced but at the time I noticed that there was an extra ISO plug that I couldn't plug into the new player as...
  2. cprfenom

    Earth leakage and EICR's

    I have an installation that has an inherent earth leakage of about 15mA. The issue I have is that when I go to do an RCD test it trips due to the the additional current created by my MFT. Question is, if this was an EICR what would you code it as and why? My take on this is that 15mA is still...
  3. Q

    Transformer causing mcbs to trip

    Hi. Could someone confirm weather you think I'm right or not. Today I installed a ceiling mounted suspension wire lighting track in a domestic kitchen. It's fed via a fairly chunky wire wound transformer (I don't know the kva of hand). The mcb supplying the circuit is a type b 6 amp rcbo...
  4. B

    What's causing this?

    Hi guys, I'm a gas fitter, not an electrician lol anyway, mum has had her house replace termed a few months ago but she wanted a light move more centrally in the ceiling, plaster'ers moved light fixing and just left 1.5mm twin and earth hanging out of ceiling connected to a chocblock anyway...
  5. S

    LED FLOODLIGHTS Causing flickering when switched off

    Can any one help and give me some advise please :) I have a lighting circuit which as a pir sensor on, a porch light, an led outside light and a halogen outside light. I wanted to replace the oitside halogen light for another led outside light. So I did and now all the lights flicker when...
  6. S

    12v Downlights causing other lights to turn on/off

    I've just noticed an odd problem. I have 2x 12v downlighters in a small room. On the same circuit, in my living room there are 12x 12v downlighters connected to two dimmable transformers. The attached load is well within the limits of both the transformers and the dimmer switches that control...
  7. S

    Problem with LED GU10

    Hi, I've installed two LED GU10 lamps in a customers bathroom. They're on the same circuit as two fluorescent energy saving lamps already installed in the bathroom. So far, three LED lamps have blow (I replaced the first one, and now two have blown). Could the motors in the fluorescent lamps...
  8. J

    test rig with fault causing fault elsewhere

    :confused5: I have been asked to wire up a couple of CU on plug tops on a display for tenants to show how to go about basic fault finding before they send for a call out . I used 2 wylex boards , one with dual rcd and one with none . I put a neutral earth fault but that resulted in the plug...
  9. B

    New Induction Hob causing oven to trip

    Hi My ceramic hob became cracked (only 18 months old since kitchen re-fitted) so purchased an induction hob to replace it. I took out the old one and replaced it with the new hob Since then the electric oven (at the other side of the kitchen) seems to want to trip the fuse board. I have...
  10. H

    Cooker circuit issues!

    Evening all, had a nightmare day with a stupid cooker circuit. I've just joined a new firm and they sent me to a job they have done recently- kitchen refurb. Cooker circuit (40A) mcb keeps tripping every now and then, no structure to tripping. 6mm T&E coming from board extended in kitchen...
  11. D

    PV causing RCCB to trip

    Hi all, To keep it short and to the point, my neighbour has a PV array on a shed which goes to an inverter, then to a 20A RCBO (I think) in a small CU and then back to the main CU in the house where it goes to a Hager 40A RCCB (30mA). The 40A Hager in the house trips periodically for no reason...
  12. flukey

    LED lighting problem

    hi all after a bit of advice really :wink5: on a job today to connect up a sign full of leds. feed had already been run to sign via photocell. once connected all worked fine until photocell was reset and then activated again causing the mcb to trip spoke to another spark who thought there was a...
  13. L

    Pir sensors blowing bulbs

    I do work for this big house what's been turned into apartments all the communal lights are on pir sensors For some reason I end up changing the lamps on the lights every couple of months the lamps aren't the cheapest you can get so I have sort of ruled that outI was also thinking is it because...
  14. D

    PAT testing causing computer failures ??

    Last year in one particular client company- after the PAT tester had done their stuff, a couple of computers had fatal errors - is this normal and this must of happened teh year before but we never made the connection at that time. I have now insisted that no further tests be done especially on...
  15. F

    High Input Voltage of 255 Causing Inverter to give Error

    Installed a 3.92kW System today. Using a 4000-TL SMA Inverter. The inverter gave a grid voltage error. After checking the input voltage it was at 255 which is definatley too high for the SMA Inverter. The house is only a few doors away from a sub station which may be causing this. What are...
  16. R

    voltage on earth

    hello all, Just revieced a call from a colleague asking what maybe causing him to be getting a reading of 97 volt on the main incoming earth? would welcome any ideas sorry its a bit vague but this is about all the information that I have currently.
  17. J

    our oven is tripping the fuse box

    Hi All, We have an hotpoint electrical fan oven, that is tripping the fuse box when it gets over 160 degrees, it should be able to get over 200 degrees. I thought it may be the thermostat, but why would that cut the power to the fuse box, has anyone got any tips on what to look at first...
  18. C

    SMA 4000TL inverter causing radio signal interferance to Economy 18 metered supply!!

    We have recently installed a system on a customers house that’s using a Sunny boy 4000TL and its causing the Economy 18 meter to disconnect the supply at random for a few minutes each day. We know it’s the inverter that’s causing the interference because it only does it when the inverters...
  19. Rockingit

    Electric fence causing problems

    Had a really odd problem out on a job the other day and wondered if others have encountered the same and what they did! Large rural plot with house, outbuildings and lots of land. TT, but on a dedicated pole which is PME so not sure what happened there! When doing some ground works and...
  20. RWJ

    Energy saving lamps 'contain cancer causing chemicals'

    Don't know if anyone else read this today... Fears have been reignited about the safety of energy saving light bulbs after a group of scientists warned that they contain cancer causing chemicals. Their report advises that the bulbs should not be left on for extended periods...

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