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Thread: Invertor problem - strange!

  1. #1
    Join Date
    Dec 2001

    Red face Invertor problem - strange!

    I just put a TFT screen and a invertor + Playstation in my car, before the installation I tried everything and it worked perfectly (with all the plastic of the dashboard in my driveway). But after I put the dashboard back in it's place, the invertor keeps beeping when I turn my car on (Even when I don't connect the Playstation) and does not output any power!

    In the manual it says it is has says the constant beep means that the overload protector kicked in. But isn't that strange when I don't even have my Playstation connected? This protection is done by a microcontroller.

    The invertor is 150W and the guy at the shops said it is strong enough for a Playstation.

    The strangest is that it worked in my car before I put the dashboard back in it's place

  2. #2
    Maximum Bitrate
    Join Date
    Jan 2001
    Adelaide, SA, Australia


    When installing the dash plastics, you didn't damage the power cords at all? jam it between two pieces? or put a screw through it? Try unplugging all the power cables from the inverter (AC side) and turning it on. Its sounds like a dammaged AC power cord. Plans and progress on my install - (Updated 28 June 02)
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  3. #3
    Join Date
    Dec 2001


    I'm guessing that it is cutting out when you cut the car on. If this is the case it is do to the overload protection. My inverter does the same thing, and I have to reset it once started to get it to work. I plan on putting a capacitor in parralel with the power to compensate for the loss, unless someone knows a way to disable the protection.


  4. #4
    Retired Admin Aaron Cake's Avatar
    Join Date
    Jan 2000
    London, Ontario, Canada


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  5. #5
    Maximum Bitrate gizmomkr's Avatar
    Join Date
    Dec 2000
    Smyrna, Ga, USA


    The inverter can go into overload for a couple of reasons.

    1. guage of the power cable is to high, ( smaller # = thicker wire)

    2. The point of connection (usually cigarett lighter) (and note this varrys by car) shuts off when you turn the key to crank.

    3. The car is just sucking so much power during cranking that there isnt enough left to run the inverter.

    To solve - try heavier guage wire first.
    Then try connecting the inverter directly to the battery. If after trying both of these, it still goes to overload / low batt :

    build one of these -

    Its a simple circuit that adds an aux power source to supply enough power to run the inverter while the car cranks.

    With some simple modifications, you can add a switch and larger battery to allow you to run the pc off the aux battery for extended periods of time (while parked w/ engine off) and still not drain the car batt.
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  6. #6
    Maximum Bitrate
    Join Date
    May 2001
    Cincinnati, Ohio


    let me guess, you have a "statpower portawatz" inverter like one of these:

    It is a funtion built into the inverter that makes it not work when the voltage drops below a certain amount, like when you start your vehicle. Heres a quick fix, turn the inverter off, start the car, and turn the inverter on.


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