noise | Page 2

noise

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  1. D

    What is the source of the pulsating/vibration noise in my flat?

    Hello, I live in a house converted into two flats - I'm in the upstairs flat. For several months now I have been hearing a pulsating/vibration sound throughout my entire flat. It often starts after midnight and continues to late morning or early afternoon and sometimes it is loud enough to stop...
  2. LewisM

    Whining noise from multiple sockets ?

    Hello, I fitted some extra sockets in a bedroom two years ago, and the customer has said that 2 of the sockets make a high pitched whining noise, all tested at the time readings fine etc, I've attached a video, doesn't sound like arcing to me as it's not a crackling sound? I've told them not to...
  3. W

    UK Metrel 3152 Aborting Zs Test because of noise?

    Hi, I have a new Metrel 3152 which appears to be having issues doing a Zs test. I have tried the meter at three sites domestic, one of which is home and each time the test aborts with the "Electrical Noise" icon showing. Metrel want the unit back to look at, however I was wondering if anyone...
  4. C

    Noise from fuse box

    Right I’ve woke this morning to notice the immersion isn’t working. It had tripped in the box when I put the trip switch back to the on position there is a noise coming from the box itself sounds like a buzzing noise wouldn’t say it’s a loud crackling noise though. It’s stressing me out.
  5. V

    Relay Noise

    Hello everyone! I'm doing a project in my car where I have those kind of courtesy lights on your feet when you open the doors. To achieve this I used a relay, the switch to turn the relay on is the lights on the roof and the power for the LEDs comes from a piggyback fuse from the fuse box. With...
  6. S

    Electric heater disconnected but still makes “click” noise

    I opened the circuit breaker to my 240vac electric heater. It still makes a “click” noise every so often like it’s trying to turn on. No heat come out. There is no thermostat. I’m confused. Help resolving this issue would be greattt.. thanks
  7. W

    Strange buzz/chirp noise coming from anything plugged in

    Hi, recently I noticed a repeating static kind of sound (here's a recording, its kind of quiet - Vocaroo | Voice message - https://vocaroo.com/i/s1BmtSek9HLs) coming from the power supplies of pretty much anything plugged in in my flat. (first noticed in my computer, then my monitor, charging...
  8. S

    Noise in wall when switch is turned off

    I replaced a switch and box that feeds a bathroom ceiling fan. Now there is a click in the wall 6 feet away when I turn the switch off. It doesn't happen everytime. What is causing this and how did it result from a simple switch replace?
  9. J

    Jaguar XK in cabin electrical whining noise

    Hi all I hear a whining noise in cabin, AC off, audio off It is relatively low volume and the noise pitch follows exactly the motor revs Seems like an induced noise... Any idea what to look for ? Thanks
  10. F

    Cooper Menvier 9651 security alarm makes humming noise

    Our Cooper Menvier is only 4 years old and had its battery replaced because it periodically makes a loud humming noise that goes on for up to 40 minutes before stopping. It does this every few days, sometimes for a few days running. We called out the supplier and they changed the battery 4...
  11. F

    noise sign on kewtek kt64dl mft

    occasionally when testing I get the noise signal coming up on my tester this stops me getting a reading, sometimes I think its a poor connection with probes and I've had it with induced voltages from other circuits anyone else had similar and what else can happen for this noise icon to come on...
  12. T

    Triple light switch makes ticking noise - even after I replaced it. What's going on here?

    Hi all I'm just a DIYer, not a trained sparky. The triple light switch in my kitchen was making a ticking noise. By elimination, I found it was the middle switch. I didn't like a switch making a noise, so I just replaced it, only to find that the new switch also makes a ticking noise and again...
  13. S

    Interaction between loads - power quality and noise.

    Hello, Sorry if this isn't the right forum for this. Didn't look to be far off... So I'm looking for some advice please with regards to interaction between loads sharing a circuit. I understand (or think I do!) a lot of the composite concepts and I think I have an idea of what my answer might...
  14. rolyberkin

    Whining inteference from in car DVD player/Screens

    I have a new car and have moved my kids in car DVD screens from a Passat to an Audi Q3, there is a significant whining noise and lines across the screen, I have just tried to get it up and running quick for a journey tomorrow so have just wired it to a cigarette plug, i have also tried an in...
  15. D

    EMI/RFI Noise filter

    Noise filter will be in between wall 240V and device. If the device is rated at 10AMPS then what AMP noise filter is required? Is it 20% above device rating? regards.
  16. M

    Contactor query

    Don't come accross these that often but today I have one that is buzzing a bit and is warm (compared to it's neighbouring mcb's) but not hot. It appears as though it is the control input that is causing the noise and heat as I am able to turn the loads off. It is a Hagar ES240. Does this need to...
  17. D

    Brain busters

    Right guys and girls, I'm kickstarting a thread that asks what appear to be quite simple to moderately complicated questions within the realms of what we observe daily to science and space. These questions are designed to initially seem simple in solution, that is until you actually start...
  18. Marvo

    Offroad Project

    Overbudget by an enormous amount and the project took 4 months longer than planned but it's finally finished. It turned into a mad scramble (excuse the pun) because I have a 4 day trip in the Karoo planned over the Christmas holidays with some buddies but finally I road tested it coaxed it...
  19. M

    External Siren Sounds Like A Frog

    Hi I have a really old Yale HSA-2500 burglar alarm installed in my house but I am having an issue with my external siren. It seems to be going off but the sound is a very muffled froggy type of a noise. My system seems to set ok (although one of my PIR's seems to have died and doesn't trigger...
  20. HandySparks

    Noisy LED lamps

    Just installed 12 light fittings an a new house. Most using several G9 LED lamps. I was surprised to find that there was a distinctly audible hum from many of the fittings. These were ceiling lights consisting of a large thin chromed steel disc fixed via a bracket to the ceiling and supporting...

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