trip

  1. A

    Complex Boiler/Light RCD trip issue

    Hi, I’d really appreciate some advice or suggestions as to what could be causing an ongoing issue I have with my RCD tripping. My RCD trips when I turn my bathroom light off when the boiler is on. It’s worth noting it’s not exactly every time and sometimes when the light has been left on for a...
  2. A

    Battery trip problem developed

    Hi, My camper has a new 12v battery and I have wired up a split charge relay with a 100 amp blade fuse near van battery and a 100 amp blade fuse after the split charge relay that joins to a pair of 110 amp hour 12 volt leisure batteries wired in parallel. However, between the blade fuse...
  3. J

    Why does my neff oven trip every few weeks?

    Neff oven trips rcd every few weeks at about 5pm…tea time,when oven set to high temp.and temp. rising,..not sure if set temp. has been reached. The rcd can be immediately reset and oven will stay on,..for another few weeks? help required
  4. N

    Why does RCD trip when measuring voltage with LoZ function?

    Why does RCD trip when measuring voltage with LoZ function?
  5. A

    power fed light switch Hager rcbo won’t trip

    Power fed light switch and all lights test great, as soon as we put the dimmer switches in the Hager rcbo won’t trip, any ideas please
  6. C

    Why breaker didn't trip:

    I work in maintenance for a major chemical company. We had a water softener line break above a compressor. The disconnect for the compressor was filled up with water. (There is a window in the front of disconnect) We could see the water boiling inside the disconnect until we shut off the...
  7. S

    How to properly do an RCD time trip test

    I've seen several videos on these, half of them show an MCB in the 'on' position protected by an RCD also in the 'on' position, earth lead on the earth bar, neutral on the neutral bar, and live on the MCB's line screw terminal. But then i've seen other videos where the earth bar and the...
  8. A

    En suite lighting not going on .

    Guys looking for a bit of advice. Our Mcb on the consumer unit was tripping constant even though nothing was plugged in. Both bedroom lighting and en suite lighting come under this MCB. However until recent both bedroom lighting remain on and the mcb doesn’t trip but the en suite lighting won’t...
  9. Qwe7410

    How to keep power trips isolated and not trip the whole place when testing faulty appliances?

    Having some 1400W 230V heaters to test and repair that have a power trip problem. I've unplugged all the connections and open them up one by one to identify the part that is causing the trips. Everytime it trips, it trips the whole place through the main circuit breaker. How can I do it safely...
    • Qwe7410
    • Thread
    • appliance appliances faulty how to isolate isolated place power testing trip trips when whole
    • Replies: 2
    • Forum: DIY Electrical Advice
  10. T

    Do Breakers trip on irms(total)

    Hi, Say i have a 16A load on a Mains 16A circuit at 230VAC. If its not power factor corrected, then is there a danger the breaker could trip? (due to the reactive current being high aswell).
  11. P

    Thought I found a nuisance trip but I didn’t. Any advice to my questions...?

    So a customer had a nuisance trip and I spent 4 hours trying to find the fault (first hour identifying circuits as none labelled at board). There was a ring circuit with each leg being fed by 32a breaker, I put them into the the same breaker. Another ring had its leg connector blocked...
  12. Davew182

    Why would an RCD trip 3-4 minutes after a light has been turned off?

    No lighting has been changed in the house for at least 12 months. Last night a small pop similar to that of a small firework in the distance came from one of the rooms in my house and the rcd for the front of the house ceiling lights tripped. This happened within a few minutes of me turning off...
  13. A

    Laptop Power Supplies Trip RCD

    Hi, The RCD which protects my 16A ring main always "trips" when I plug/unplug a Laptop power supply. No other type of appliance causes a problem. I have 2 laptops with the external power supplies on leads which both cause this problem. I also have a similar 240v to 12v switching adaptor for a...
  14. S

    Why does my underground pump trip the rcbo?

    I have a submersed bore pump 85M down and covered by 40M water. The motor/pump is 1.1HP, capacitor run, 35uF in a capacitor box above ground, with a three wire conductor and earth cable going to the pump. The water is pumped up into a tank at ground level. There is a pressure switch at the...
  15. B

    Fuse Box RCD vs RCD Adapter - which should trip first?

    In an attempt to isolate for certain whether my fridge freezer is causing my main RCD to trip or something else, I used an RCD adapter in the socket that the fridge is plugged into. (Note - The tripping had stopped after unplugging the fridge freezer, but because it’s the second appliance to do...
  16. R

    Earth leakage high on oven but no trip?

    Morning, Customer has a intermittent trip which I am trying to locate. 4 circuits on rcd. Two rings , cooker and hob and one I cannot find actually powers anything as yet. Rings test fine and cooker circuit is okay continuity and I/r. I have put my earth leakage clamp on tails and when I go...
  17. M

    Difference between ON and OFF intervention in the tsd of an ACB trip module

    Hi All, I'm trying to learn about discrimination and I came accross the LSIG characteristics of an Air Circuit Breaker. Howecerm there is something I really cannot understand about the Tsd. What's the difference between ON and OFF in the intervention? Thank you in advance
  18. B

    Shunt Trip Breakers

    Hello, Ill start by saying i am NOT an electrician. I do own a small business installing commercial kitchen exhaust systems and fire suppression systems. I assist the electrician on site normally in wiring the Fire system and alarms. I recently heard of a shunt trip breaker. In the past, and on...
  19. Msitekkie

    Why does RCD trip when fused spur switched on

    I was called out last night to an RCD trip issue. I found that switching on the fused spur to the washing machine would cause the trip & I could only reset the RCD after switching it off. Straightforward up to that point, but after unplugging the washing machine, then disconnecting the spur...
  20. S

    Could this socket be causing circuit to trip every 3-5 days?

    Hi, I've been getting my house socket circuit tripping about twice a week. We only moved in about 3 months ago. I've been going around checking all the socket connections and today came across this one in one of the bedrooms. It didn't have the neutral fixing screw tightened so I've secured that...
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