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I need a rectifier or avr for generac 3500 xl genarator

Rectifier and or avr is missing need replacment

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Generator Diesel

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We supply multiple brands of generator set, such as: Cummins, Volvo, Deutz, Doosan Daewoo, MTU, Ricardo, Perkins, Shangchai, Weichai, Yuchai etc. The style of genset is varied, such as: container genset, trailer genset, portable trailer genset, soundproof genset, low noise genset, and silent genset, etc. Besides, we also supply design and construction of the noise reduction project up to the customer's requirements.

Posted on Oct 31, 2017

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Ebay and various places including the maker..

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  • Posted on Jun 28, 2016

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    1 Answer

    Generac XP8000E how do you replace the battery charger fuse 1.5 all I can find out is you have to remove the control panel. No manual and can't find any info


    Roger,

    1st check the voltage going into the Battery Charging Rectifier from the alternator. You should get between 12 Volts DC to 16 Volt DC with the engine running.

    If you get these results next check the battery. You should get max 13v dc going to the battery. If your battery is not charging on this unit or gets under 12x dc, you need to replace the battery charging rectifier.

    http://www.generatorguru.com/battery-charging-rectifier-99302775/

    If you need other parts you can find them on this page.
    http://www.generatorguru.com/xp8000e/


    Hope this is of assistance to you!

    Dec 19, 2016 | Generac Electrical Supplies

    2 Answers

    I have a 6000 watt allpower generator that the 12 volt breaker poped out reset it still no power replaced the avr ran for about 5 seconds then poped the 12 volt breaker again what could it be


    Barry,

    The 12v system does not go through the AVR. It most likely is the Battery Charging Rectifier has failed. This controls the voltage from the 12v feed from the alternator and charges the battery.

    1) Follow the wiring from the 12v socket/connectors until you come to a Block rectifier. It will be held on by a bolt in the center and have 4 wires connected to it. If you look at the pins you will see one is seated at a different angle to the others. Test the feed to this pin, you should get a result of between 12 Volts DC to 16 Volt DC.
    If you are not getting these results then the Block rectifier has blown and will need replacing. http://www.generatorguru.com/rectifier-98406168/

    2) If all is testing fine above, then you will need to test the Battery Charging Rectifier as you have an Electric Start and Battery on your unit. This is a metal block located on the back of the engine, next to the starter motor and it has fins running across it. ( to see an example of this part look up your generator on this page http://www.generatorguru.com/all-power/) Again this should be giving you between 12 Volts DC to 16 Volt DC.

    3) Next,check the voltage going into the Battery Charging Rectifier from the alternator. You should get between 12 Volts DC to 16 Volt DC.

    For replacement parts please see our web page. You will need the full model number to do this.:

    http://www.generatorguru.com/all-power

    Dec 06, 2016 | Allpower Electrical Supplies

    1 Answer

    Need wiring diagram to figure trickle charger out


    Check the stator for AC output to the charge rectifier, if present stator ok, then check DC on DC side of rectifier if not present change the rectifier, ssuming all fuses have been tested

    Nov 08, 2013 | Generac Electrical Supplies

    1 Answer

    If I run the generator for several hours it will die do to low charge on battery


    Check the battery voltage before you start it at the generator. IE 12V start the generator and measure again. It should be around 13.8V if it does not rise, go to the charge rectifier in the genset and make sure you have AC going onto it. (Assuming you have the gen battery charge option) If you don't have ACV you can suspect the B stator windings, if you do have AC. Check the rectifier DC output 13.8V if present check wiring and fuses, if not present change the rectifier, note where the wires go ! The battery is dying because the ignition system of the gen is pulling it down and it is not charging.

    Oct 01, 2013 | Generac Guardian 065795 - battery charger...

    1 Answer

    I have a automotive battery charger thats a Snap-On BC4200 I believe the rectifier is burnt up in it and am looking for a replacement part. Snap-On book says the part number is BC4200-2000R but it...


    if you can find out the current it takes you can go online and buy rectifiers all day long they are pretty cheap too also you need find the type of rectifer like full wave, half wave, bridge rectifier. the bridge is usually the most common tho.

    Nov 12, 2010 | Generac Guardian 065795 - battery charger...

    2 Answers

    I have a 10 KW Generac Guardian Stand By withe a prwired EZ transfer swithc. Everything works except the 12 volts battery charger. What could be the problem. Only have three weeks innstalled.


    Your generator is equipped with a battery trickle
    charger that is active when your unit is set up for
    automatic operation. The trickle charger is
    designed to help extend the life of your battery by
    maintaining the battery when the unit is
    not running.
    you will need to review which circuit bord controls this and have that board replaced or serviced some of these gen heads have this built in and it will be the rectifier in the gen it self it will be a black 1x1x3/8 inch with a mounting hole in the center and 4 lug post for the wires replace this and your issue should be solved but consult your dealer for witch unit you have as to a control board external or the built in rectifier hope this helps.

    Aug 11, 2010 | Generac Guardian Series 5502 10 kW...

    1 Answer

    How can i fix my rectifier


    Replace the part. The part is not repairable if blown.

    Mar 21, 2010 | Generac Guardian 065795 - battery charger...

    1 Answer

    Generac 20kw - new battery dead, twice. is there a problem?


    if this is a standby unit. there is a charger built into the control box. check the fuses. if it still blows the d\fuse you can install a float type charger available from most auto parts stores. make sure there is power comming in from the bldg breaker box.

    Aug 10, 2009 | Generac Guardian 065795 - battery charger...

    1 Answer

    No electrical output


    It is possible that your voltage regulator is shot but before purchasing the volt regulator try flashing the fields first and make sure the brushes and rings are clean.

    Feb 13, 2009 | Generac Guardian 065795 - battery charger...

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