Question about Audiovox Jensen Jp 20 Single Outlet 160 Watt Dc To Ac Power Inverter (Jp 20, Jp20)

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Jensen power inverter repeatedly blows auto fuse

I used the Jensen 160 watt power inverter in my Dodge Dakota for months, with only 1 blown 20 amp fuse(truck fuse). Now it blows the fuse within minutes of switching it on. It's always the truck fuse, never the 20 amp fuse in the inverter.

Another poster suggests connecting straight to the battery. As the inverter is the only thing plugged into the cigarette lighter socket, wouldn't a bigger fuse do the same thing?

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SOURCE: power inverter blows fuse in car

overloading fuse on cars wiring try direct connection to battery

Posted on Feb 18, 2009

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Outlet fuses keep blowing with inverter use


it could have a fault and thats why it's blowing the fuse, inverters can wear out and the parts may need replacing the capacitors the voltage regulator chips all these parts have to be taken into account, this parts don't last for ever they need replacing. capacitors can last upwards of 12000 hours but electric jolt and what you are use to be powered adds more drain on the electronics most inverters you can get at most 5 years out of them but it really depends on what you use on them, and if you useing it to its max or near max all the time it will wear out, then blow fuse

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1992 Dodge Dakota 2wd 3.9L V6 Air conditioning/Heater dosent blow? when i turn the air or the heat on i can hear the compressor kick on but it dosen't blow cold or hot? any help would be appreciated


Roger it sounds like the blower motor is not comming on. There is a resistor network located in the engine compartment on the passenger side mounted to the firewall, that controlls the blower motor. The connections may have corroted or the unit itself is bad. That was the first thing I had to relpace when I got my used 92 Dakota. There is also a 30 amp fuse in the fuse box under the dash board . If that is blown I would suspect the blower motor is seized up or just pulling too much power.

Nov 29, 2011 | 1992 Dodge Dakota

1 Answer

My inverter keeps going to falt even though i only use it for a few seconds its only a few months old and has not been used mush its a 1000 2000 max


What are you trying to power with the inverter? Do you know how many watts your appliance need to run? Your 1000 watt inverter needs 83 amps from your battery to drive a 1000 Watt appliance. The minimum size wire you need to hook up the battery to the inverter is a size 6 as short as possible but no more than 25 ft.

Jul 28, 2011 | Inverter 1000-2000w Peak Surge Power

2 Answers

I have a 800 watt inverter an i use a 1500 watt kettle the inverter 15 amp fuse blew


The kettle is 1500 watt 800watt inverter is not big enough you'll blow fuse every time

May 25, 2011 | Inverter 1000-2000w Peak Surge Power

1 Answer

My name is Gena. The VEC024B that is being used by our field technicians are having problems with the fuse blowing in their work vans. Their vans are equipped with laptops.


Hi Gena, the inverter is a 400 watt unit. This is not a rating for a continuous load. You do not mention which fuse is blowing. This could be the fuse in the inverter or the cigarette lighter (power source) fuse. In either case, a fuse blowing could be a short circuit, something in the inverter shorted, or too much load. I am going to look at the too much load side of things. Not knowing how many laptops are being used, with the inverter if you have a 20 amp fuse in the cig lighter, this will allow you 20 amps X 12 volts = 240 watts. I would not run the inverter over 240 watts because of overheating issues. So, 240 watts will run 3 laptops. Just the laptops. Most laptops draw around 70 watts. check your power supplies on them to find their rating. If you exceed the 240 watts by combining the ratings, then you can expect trouble with your inverter. It will give 400 watts, but this is a temporary condition only. Another inverter will be needed or a larger one installed and it being connected directly to the battery (with a fuse of sufficient size installed). You could also (let us say there are 6 computers) charge and run 3, and the other 3 are running on their batteries. After an hour, switch so that the 3 running on batteries now are charging as well as running. The other 3 are now charging.
I hope this helps. If you have any other questions please provide additional information. Such as the size and location of the fuse blowing. The laptop power supply ratings.
thank you

Oct 15, 2010 | Vector VEC024B MAXX SST Power Inverter

2 Answers

Can I connect vacum cleaner big one with Black & Decker 100 Watt power inveter


Hi,
No,
You will need a much larger power inverter than that to run that vac...

heatman101

Apr 22, 2010 | Black & Decker 100 Watt Plug-In Power To...

1 Answer

Fuse blows repeatedly


The auto speed control is failed. Keep it manual and see how it does...It will run at full throttle even when no load is running. Then fix the throttle control when able.

Aug 09, 2009 | Generac Guardian Ultra Source 15,000 Watt...

1 Answer

20 amp fuse for brake lights continually blows out


you have a short in the wiring to your brake circuit.check the pedal switch,it could be cracked and shorting out.those switches are known for having the tail lights stay on until you hit it a few times.the other thing to check is the light assemblies.there may be enough corrosion to cause a short.instead of a fuse,wire a bulb across an open fuse.when the short shows up the bulb will light.use a 25 watt bulb.

May 15, 2009 | 2004 Dodge Dakota

1 Answer

Power inverter blows fuse in car


overloading fuse on cars wiring try direct connection to battery

Dec 27, 2008 | Audiovox Jensen Jp 20 Single Outlet 160...

1 Answer

Conecting to 120 volts AC


If you want to get more precise, figure out everything in terms of power (watts).

Basic electrical rule 1, 2 and 3:

voltage x current = power

or re-arranged:

current = power divided by voltage

or re-arranged:

voltage = power divided by current


For example, 12V X 2 amps = 24 watts.

or another example, 400 watts divided by 120 Volts = 3.33 amps

A 55W headlight that uses 12V would draw 55 /12 = 4.6 amps @ 12V

A 55 watt light bulb in a lamp at home would draw 55 / 120 = 0.46 amps @ 120V


As the previous post mentioned, inverters are not perfect when convertering 12V into 120V. If the converter consumes 1000W from the 12V battery, then a 90% effecient converter would generate 900W of 120V AC power best case. The other 100W is lost primarily as heat.

The other thing that gets tricky is that these ratings and the formula above are used for resistive loads, like light bulbs or hair dryers. Anything with a motor or transformer is considered an inductive load and can get much more tricky to calculate.

Consequently you need to give your self a safety margin when figuring out how big an inverter you need.

How does work in a practical sense?

Lets say you want an inverter for TV, DVD and Sat. Receiver. Look at the back of TV or in the manual. It should say how many watts it consumes. Lets say it is 400W. The DVD might be 100W and the Sat. receiver 50W - just as an example.

400 + 100 + 50 = 550 Watts. (just as an example)

You might think, well no problem, I'll use a 600 Watt inverter and have 50 watts left over. Depending on your inverter, that 600W might really be 600 x 90% effecient = 540 Watts of AC, less a 20% margin of error for the inductive transformers in the electronic of the TV, DVD and Sat. receiver 540 - 20% = 432 Watts.

Now you can see your 600 Watt inverter isn't big enough to do the job.

If we really need 550 watts of AC, add 10% to make up the effiency loss, then add a safety margin for inductive loads.

550 + 10% = 605 + 20% = 726 Watts.

Sounds more like an 800W inverter fits the job.

What does that mean in terms of wiring the 12V batteries to the inverter?

from the formula above:

current = power divided by voltage

In our example, we have an 800W inverter that runs on 12V

The current would thererfore be:

current = power divided by voltage
current = 800 watts divided by 12V
current = 66 amps.

That is important info because you can not use light gauge wire to carry 66 amps worth of 12V to the inverter nor could you use a 20A fuse to protect your inverter.

Now that's a lot of science for a guy who just wants to run a toaster on an inverter right?

800W / 120V = 6.66 amps

Using garryp's ratio 11:1, 6.66 x 11 = 73 amps.

That is a good ratio with a good safety margin.

This is all just MHO and should not taken as solid technical advise. In other words, don't blame me if you blow yourself up.

Nov 26, 2008 | Coleman 5640B807 Compact Refrigerator

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