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I have a highgear by cobra 2000 watt inverter and it seems all the internal fuses are ok but it still isn't working. So what now?

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Posted on Jan 02, 2017

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SOURCE: 2000 watt inverter blows 60 amp fuse under load

I have a background in electronics so i hope i can help. Now after reading this i have the feeling this item does not put out 2000 watts cause if that were the case it should draw somewhere near 147amps. This is because to find out amps you need to take the 2000 watts and divide it by 13.6 volts (assuming what the vehicle runs at) that gives you amps. watts/volts=amps.

Posted on Apr 02, 2009

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SOURCE: Inverter not working

unless you are into electronics it is cheaper to replace it! take it to a repair shop for an estimate

Posted on May 28, 2009

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SOURCE: Overloaded my inverter -now only works when hooked to car battery

It sounds like the fuse that protects you cigarette lighter is blown.

After you have replaced the fuse, check the voltage again. 0.015vdc would not have powered anything that in manufactured to operate on 12vdc.

When powering anything over about 250W, I would suggest connecting directly to the battery to avoid overloading the lighter circuit.

Posted on Nov 27, 2009

  • 4 Answers

SOURCE: power inverter

There are 8 40A fuses inside this unit. In the following pics you will see a bank of 4 and another bank with 3 of the 4 removed. I'm currently working on mine as it will cost me more to ship and have Cobra repair than I paid for the unit ($133 to repair). Good luck with your problem

Posted on Aug 24, 2010

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Any auto parts store will have it. Possibly even Walmart depending on if it is specialty. Do you still have the old ones that you're trying to replace?

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You may not have adequate input voltage. And unless you are hooking up to a forklift battery, the battery will not have adequate current delivery capability for any more than a few seconds at full power of the inverter.

1200 Watts is 100 Amps. 1500 Watts is in the neighborhood of 130 Amps.

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I had a monitor and xbox 360 power supply plugged into the inverter. It has been working for at least 2-3 months now just fine. Then all of a sudden, it turned off. I unplugged it and thought maybe it...


  • First thing I should ask is have you tried to plug something else into the inverter to see if it is the inverter or a surge messed up your monitor and X-Box?
  • When you say turned off do you get a solid red light when the inverter is on and you are trying to get your X-Box and monitor to work? A solid red light means voltage overload.
  • A blinking red light means you are having a current overload.
  • If the internal alarm on the inverter goes off and shuts down with a red light this means you are having a voltage shortage.
  • If the red light starts to blink this is a temperature overload.
  • Keep in mind that this inverter will start automatically back up as soon as what ever issue it is detecting is resolved. There is no fuse to check inside.

  • If your inverter shuts down from thermal overload then wait 15 full minutes before trying to turn it on again.
  • If you don't have any blown fuses and no burned wires make sure that if you are using over 150 watts and hour you go right to the battery rather than a cigarette light adapter as the stress can burn them wires connecting to the cigarette lighter up.


  • Hope this helps and thank you for using FixYa.

Regards, Tony

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FROM WHAT I CAN SEE IF THERE IS A FUSE IT WILL BE INTERNAL, I'M SUPRISED TO SEE THERE IS NOT A RESET OR OVER LOAD PROTECTION ON THIS UNIT CALL COBRA AND THEY CAN ANSWER THE QUESTION

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There are 8 40A fuses inside this unit. In the following pics you will see a bank of 4 and another bank with 3 of the 4 removed. I'm currently working on mine as it will cost me more to ship and have Cobra repair than I paid for the unit ($133 to repair). Good luck with your problem

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2000 watt inverter blows 60 amp fuse under load


I have a background in electronics so i hope i can help. Now after reading this i have the feeling this item does not put out 2000 watts cause if that were the case it should draw somewhere near 147amps. This is because to find out amps you need to take the 2000 watts and divide it by 13.6 volts (assuming what the vehicle runs at) that gives you amps. watts/volts=amps.

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