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Briansaville Posted on Nov 26, 2016
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What does opp stand for on a motor master 3000 watt inverter

Just connected my 3000 watt inverter, and turned-on, power light comes on then goes out, showing opp on the readout, any thoughts

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Pierre Curtis

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  • Contributor 33 Answers
  • Posted on Dec 07, 2016
Pierre Curtis
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Joined: Jan 18, 2009
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Unit is shutdown with display showing "OPP"

Inverter is short circuit and has shut down.

Reset to normal operation by using manual switch

  • alvin young
    alvin young Nov 14, 2021

    I try that and still the same

×

5 Related Answers

Anonymous

  • 242 Answers
  • Posted on Oct 24, 2008

SOURCE: power inverter

Most likely a fuse. Check for a fuse on the inverter itself or one inline with the plug. Usually you can screw off the tip of the plug and replace the fuse inside.

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Anonymous

  • 4 Answers
  • Posted on Mar 03, 2009

SOURCE: 2nd season with 400 watt vehicle 1024 inverter. The

Restating the question - 400 watt inverter is turned on and running with the vehicle turned off.
After starting vehicle the red light of the inverter is on with no power output from the inverter.
If you turn the inverter off then on inverter operates normally.

Solution - this is normal operation - my inverter does the same thing. When you start the vehicle
it draws a lot of current from the vehicle battery which causes a drop in battery voltage. Most inverters have a low voltage input safety and will fault the device.'

If the problem is turn on inverter then the red light starts flashing... I am thinking you
have the same problem as the one I replaced - it broke... I am sure some capicator
or other component in the circuit failed... My solution was to purchase a new one...

Anonymous

  • 4 Answers
  • Posted on Mar 03, 2009

SOURCE: Low voltage output from inverter

I am thinking this a high impediance device problem and this is normal operation - the user manual of my inverter warns about use with high impediance devices - if not I am interested also...

nitrospawn

Ibe Chukwudi

  • 290 Answers
  • Posted on Feb 26, 2010

SOURCE: I HAVE USED THE NEXXTECH 175 WATT POWER INVERTER

have you charged it,and check if the battery is still ion good condition

nitrospawn

Ibe Chukwudi

  • 290 Answers
  • Posted on Feb 27, 2010

SOURCE: Vector vec 051D 3000 watt fan won't run anymore, unit overheats

your inverter needs to cool at all times , if the fan does not work,try buying a small standing fan to blow cool air to you machine, it is possible that your heater is making the inverter to over heat please avoid using the heater on the inverter

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Cobra inverter powers up but no power and it flashes OPP
the OPP error is an indication that the AC load "output" is short circuit. Try disconnecting the AV load-device and attempt to try again. Use a lamp or other suitable to confirm that the inverter is pr is not working properly.

It is possible that the load (device) that you have connected either exceeds the inverters power rating or is in fact shorted and the inverter is working properly.

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Starting ad 75.00 an hour with the bill being around 175. before your running again.

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Sad new I'm sure for you SORRY. I'm a Seven inverter owner with only one good inverter to show for all the trouble.

r/ David

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Restating the question - 400 watt inverter is turned on and running with the vehicle turned off.
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If you turn the inverter off then on inverter operates normally.

Solution - this is normal operation - my inverter does the same thing. When you start the vehicle
it draws a lot of current from the vehicle battery which causes a drop in battery voltage. Most inverters have a low voltage input safety and will fault the device.'

If the problem is turn on inverter then the red light starts flashing... I am thinking you
have the same problem as the one I replaced - it broke... I am sure some capicator
or other component in the circuit failed... My solution was to purchase a new one...
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