20 Most Recent Vector VEC 024 400-Watt Power Inverter (VEC 024) 400-Watt Power Supply Questions & Answers

it depends on what burnt in it, you should check it out to know

i have the same one ...and i'm not seeing a fuse, there may be one internally
does the inverter have strong "burnt wire" smell if so it is probably fried.

Power inverters can do this if they are internally shorted or they are being over loaded. If you are just using it to charge a phone or a computer it should not be over loaded. Now if you are charging a computer and running a small cooler at the same time, that may be real close to max which may blow a fuse. Have you tried hooking it straight to the battery to see if it will run what ever you are running. It has it's own fuse so if it has an internal short it will blow that fuse. It if works hooked to the battery and is just blowing the cig lighter or acc. fuse it can be a weak socket. If the socket is hot it may have a loose wire on the back side causing low voltage which can blow a fuse. So hook it to the battery direct, if it works ok there, reconnect it to your acc port and if it is getting hot it may be the weak socket. If it will not run hooked to the battery, it has an internal short and it would be better to buy new than try and fix. Sorry.

you may find that walmart has those for under 20.00 and a fan is 25.00 and you take a huge risk of electric shock and damage to your car or equipment trying to do a stupid pos inverter, get my drift?
walmart.com

When inverters go bad this way, it's usually a diode that's broken down. They're easy to test with an ohmmeter- you will get an open reading one way (reverse biased), and will read a few hundred to a couple thousand ohms the other way (forward biased). Other than that, the other components will have to be troubleshot.
A transformer ot power transistors will have to be checked out. You can google articles that explain how to check them, if needed.
Good luck, and hope this helps.

A laptop like yours uses 85 watts. However that is not all that you have to consider. You need to figure that the car produces to make this easy, 14 volts. It is moving that up to 120 volts. That requires 10 amps. And that is with no load on the system. So on the rating of the adapter that you have it says 400 watts. That means that it is going to allow 4 amps to be drawn through it. Most of the laptops run about 85 watts at 19 volts and that takes 4.4 amps.

Usually the mating one has been degraded or damaged as well. Replace as a pair, or all of them that are in the same function.

OFTEN driver transistors and drive diodes are also damaged. Carefully check all associated components to avoid burning out freshly replaced ones.

off, never leave it on, danger of short if the clamps touch metal, turn it on only when you are using it to help start a car

ground it off on the case...any grounding method should work. Unless you are talking about the main connection terminals... then just replace the missing thumb screw with a short screw and an eyelette type connecter.

charger for is that it ??????? stupid question

extremely complicated my friend would suggest take a course

It sounds like it burnt out, unless there is a fuse someware in the unit. Were you filling the tire while it was mounted on the vechicle. I had one in a couple of my vechicles over the years, and you really need to remove the tire, or they are actually lifting the car, which they are not meant to do.