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Thread: inverter overheat?

  1. #1
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    inverter overheat?

    hey, ive been reading this forum for a long time now and have a running system thanks to the geniuses here however i have been having one problem recently that i cant get figured out. it seems that after a while of being run, my inverter decides to shut off. the fan will be running but nothing is powered. Now this obviously seems like overheating but isnt it strange that my inverter will overheat way before anything else fails. It gets annoying when the system shuts off after 10 minutes of running. I guess my real question is are there inverters that can operate in higher temperatures? I already have fans all around the inverter. Im just not sure what i should do now.

  2. #2
    Constant Bitrate FociMan's Avatar
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    Is the inverter in an enclosed space? If possible try running the system with the inverter outside the car in cooler air. I suspect that there is a problem with the inverter, because in my experience, it's quite rare for an inverter to overheat unless it's covered or enclosed. If the inverter still croaks even with cool free flowing air, then I think there's a fault with it...
    FociMan

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  3. #3
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    well the inverter used to be in a tight spot in the trunk. Its still in the trunk but has very good airflow not to mention the one fan blowing air over it and one fan blowing air straight down on it

  4. #4
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    also is it possible to take the casing off of the inverter to cool it better?

  5. #5
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    i just noticed something very interesting. I had the system running and then all of a sudden when my subwoofers hit, i would hear a beeping sound from the inverter. I turned down the volume and noticed it went away, so i turned it back up a little bit and everytime the subs hit, the inverter beeped. maybe my problem the entire time was power to the inverter. i havew an old walmart everstart battery and a 325watt inverter thats running a small 5in psone screen and a low powered 1.6 sempron system with not much extras. i wanted to put in a tank circuit to help survive crank, if i did would that help take stress off the main battery while the system is running? or should i look into a new battery, alternator, or inverter? thanks for all your help guys

  6. #6
    Low Bitrate
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    The beeping is most likely a low-voltage warning. As the subs hit, the amplifier is using more power. If your electrical system isn't up to par (alternator output not enough to keep up with the load), then the voltage will drop quite a bit (and begin drawing from the battery). The inverter detects this voltage drop and gives off the "low-voltage" beep. At least with the sub/beeping issue, a higher-output alternator (and upgraded factor wiring) would probably solve the voltage drop and stop the inverter from beeping.

  7. #7
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    i was kind of afraid of that. so a tank circuit would do nothing for me here? it would only be needed when those drops in voltage occur so if just the computer was pulling from 2 batteries that were constantly being charged by the alternator wouldnt I be fine with that?

  8. #8
    Variable Bitrate numbers's Avatar
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    It all depends on how you wire the tank circuit. Yes it could completely cover up the problem. Honestly though, you need to fix the problem. Inverters don't commonly complain until the voltage drops close to 10-10.5v. That's ugly. Is your inverter connected to the same power wire as your amp? If so then you may just need a larger wire running from the battery. If not, you may need a more capable alternator.

  9. #9
    Variable Bitrate
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    I had the same problem. I made a hole in it and mounted a big fan on it to keep it cool. This really works.. But you will by an Opus at least

  10. #10
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    yup, one wire runs from my battery to my amp and then another from the amp to the inverter. if im looking for a new alternator, what size is best? i have a stock 95 honda accord alternator and have no idea how much power it puts out so i have nothing to base my searching on

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