Medium Voltage Circuit Breaker

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FAQ

Hi everybody, I tried asking somebody to check the engine light on my car, they accidentally jumped the wrong cable which seems to have stopped my sony car stereo from working now. I checked the radio fuse and fuse behind the stereo and they all look fine. I am still able to eject and insert a CD into the system so that means that power is getting to it right? Is there a reason why the head unit doesn't come on?also Is it possible to fry your cars wiring with this mistake? But isn't that what the fuses are for? Is it just my head unit?thanks in advance!

If this is a manufacturing facility stereo on a overdue mannequin vehicle that you simply purchased new, then there's a well risk that your trader gave you somewhat card that has a quantity on it. Sometimes they placed this within the packet that you simply walked out of the dealership with, and mostly they only placed it on your glove field. If you cannot discover this quantity, then there's a risk that the dealership can reset it for youfor a rate mostly. The simplest difficulty I see is if you have no energy in any respect to the stereo (clock is not on, no safeguard caution at the show, and many others.) then they'll have blown a fuse on your fuse pannel whilst the alternator used to be hooked up. Even worse, if the fuse the radio is connected to didn't blow whilst there used to be a surge find it irresistible used to be meant to, then your radio is also burned up. Either approach, it seems like you want legit support. Stop via your regional stereo save, or dealershipwhichever is extra handy. It does not price something to invite them a query. Good success.

I also checked the fuses but still no power to the fuel pump and ideas what it might be?

did you check the pump before fitting it, if not get some cable and go from battery to relay and see if the pump runs,if not check by placing temporary wires from pump relay to the pump and trying Again,if still not working temp cable from battery to pump relay then from pump relay to the pump if it works its a short circuit in the cars wiring loom,if it doesn't work then its the relay or pump, if you checked the pump earlier then its the relay at fault,also check the earths (grounding cables) if these are loose of broken then no return means no power,,just to be sure try a fuse that's working another component,of the same rating,in other words just swop the fuses over if they are same rating, and try again,hope this helps and be careful fuel pumps and fuel and sparks can cause fires

1998 Mazda pick up B4000 power windows and wipers only work sometimes, fuses are ok what else could the problem be?? Will work fine for a while and then go dead and after a while will start working again?? Thanks for any response to this problem.

Loose ground or connection, Corroded connections etc. Check the wiring to and from the components

Hey,Ww have a DC to AC converter so we can use our laptop and charge our cells on the road. The casing fell off the converter, and my mom and sister told me that it was stuck in the front power port (or point as the manual calls it) of the van.One day I decided to go out with a pair of hemostats and try and remove the plug. Little did I know that power was still running to the power point inspite of the engine off. Once the hemostats were inserted, there was this huge ark (tons of sparks) so I made sure everything ran properly and said that I would get the part out at a later date.Today I looked and it turns out no part is stuck in that power port, but it is dead. The fuses for the front and back port are okay along with the cigar lighter.I thought I could go pick up a new port from the dealership, but my mom thinks the wiring is fried, but if the voltage got that high, wouldn't the 20 amp (max of 240V) be fried?Anyone know what could be wrong? Is it the wiring or port?Ty!

Im sure it would be the wiring or a fuse. I would check for a fuse under the dash and also there should be a main fusebox in the engine bay next to the battery. If it was the wiring then it would have shorted at the weakest place (or smallest gauge wire). When something like that happens you need to be carefull. There is no telling what kind of damage might have been done to other electrical components in the vehicle. Hopefully that was the only thing affected and you wont see any more problems come up later on. I would suggest having a diagnostic done on the electrical system just for good measure. good luck.

I assume it is a fuse problem, but would it not cancel out all of the tops?A fuse for each side no?I'm not great with electrical components so any help would be appreciated. I'm trying to avoid a hefty Electrician bill if it is a minor problem.Thanks in advance.

These elements do go out indivdually and can be purchased at any appliance repair shop my guess would be an element or the plugin socket that it plugs into and either can be replaced easily. ALWAYS TURN OFF THE POWER BEFORE ATTEMPTING THESE REPAIRS.

99 jetta was working fine till one day it didnt startit didnt crank or many any sounds when i go to start it i also noticed before i did this that my key remote was not locking or unlocking my doors, also the controls on the door to lock and unlcock didnt work either everything lights up headlights , radio. but it wont start,, i had it jumped and nothing happend. mechanic tested the battery and said the battery is fine. and he doesnt know wat happend.any help ?

The lock barrel probably has just gummed up. It's unlikely that you have a bent pin. Try spraying WD40 into the keyhole. This works in 99% of cases. If that doesn;t work then a locksmith will cost you about ?60 + the cost of a new barrel. You can replace the barrel on a PVC door your self if you are confident enough. I'm assuming that you have the normal PVC door lock which is a Yale type key combined with lever handles. Look at the edge of the door near where the lock's tonge sticks out. You'll see a single cross-head screw. This holds the barrel in place. Make sure that all is in the unlocked position. Take off the handles and eustucian plate from the inside of the door. Remove (carefully) the screw I mentioned. Pull out the barrel. Take your new barrel and replace by reversing the above procedure.

a motor, a generator, a battery, or a fuse?

Generator. Uses fuel that burns and create motion of a machine called a Prime Mover. The Prime Mover then drives a coil inside a generator.The coil cuts through Magnetic lines of forces around another coil.This induces a voltage on the coil as it rotates on the shaft of the prime mover. This voltage forms the electrical energy that is taken from the generator. This all depends on the size generator. may be too much for you based on the question, but hope it works!

I had lab and I don't quite understand why I did what we did. We used an analog and digital VOM and used it to record the ohms and volts of various electrical components. I was wondering why when using the analog that different devices read completely different ohm readings. Take for example, our Buss fuse didn't even make the needle move, but the diode and the resistor made it go to infinite ohms. How do I figure out what they are supposed to read, and what to expect before going to lab. I couldn't find anything in my book or the lab manual. Also, I was wondering why a resistor would measure outside of its' tolerance range. Is this because it was faulty? Any help is appreciated.

hmm - the fuse resistance was very low, the diode was infinite 'cos it didn't conduct - it would have done if you reversed the polarity ( turned it round!). This was an experiment - you do not ask what they are supposed to read, it's your job to find out by measuring.!!! That's Physics, not Criminology! The resistor could be out of tolerance, but so what? Just measure it's value as it is now.