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Over speed generac 17 kv guardian alert - Generac Electrical Supplies

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  • 264 Answers

Here is an article about overspeed of diesel generator, hope it can help you:
https://www.dieselgeneratortech.com/diesel-generators/The-cause-of-overspeed-in-a-diesel-generator.html

Posted on Aug 17, 2019

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6ya6ya
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Posted on Jan 02, 2017

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CarlGehrke
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SOURCE: Generac Guardian 17.5KW Generator dies

If this is one of the big "taco cart" portables you need to check that the vent on the gas cap is open when you're running the engine. In the center of the gage on the gas cap is a little knurled knob, turn it counter clockwise (lefty loosey), about a half turn or so and run the generator.
If that doesn't solve your problem add to it here, otherwise please give me a rating I'm trying to build a little credibility here and could use the help.
Carl

Posted on Dec 02, 2008

  • 26 Answers

SOURCE: Attempted to start Generac Guardian 15 kw air

I work on these every day. Its either gonna be the rotor or stater, the voltage regulator, but most likely its a bad stepper motor which is the throttle motor, or control board. Thats all that could be causing that so its one of those. If its the rotor or stater thats bad it causes the generator to RPM up because it thinks its not producing enough power due to that. I had the same problem with the same one we just fixed and it was the slip rings on the end of the rotor so bad rotor.

Posted on Jul 09, 2009

  • 1 Answer

SOURCE: Generac Guardian 15 kw overspeed fault

Did you remember to set the overspeed shutdown threshold on the control board?

Posted on Jun 07, 2010

  • 1 Answer

SOURCE: Generac Guardian 12 KW Model 04456-2 shuts down on overspeed in cold weather

Leigh,
See my 5/22/12 comments on my "overspeed fault" problem resolution [Generac 43903 standby Generator overspeed indicator on starting] . If it only runs for a few seconds and then quits, you may have a similar condition to the one my unit had. A good technician should be able to diagnose the problem and determine if you have a similar failure to the one I had, or one of the other causes suggested by RSG000.

Posted on May 23, 2012

traviskelly8
  • 62 Answers

SOURCE: why want a 20kw generac guardian home generator not switch back to utlity power ?

Contacts are burnt

Posted on Jun 03, 2014

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I need a rectifier or avr for generac 3500 xl genarator


Ebay and various places including the maker..

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    Generator hard to start and sputters like its missing


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    After shutting it down for summer months it will not start, only makes click noise i have a guardian generac 7000kw home standby generator it is not the limit switch


    sound like a dead battery, or dirty / bad connection from battery- try jumping it with a car battery-- if that doesn't work, check battery connection, loose or corroded leads.. otherwise it is solenoid or starter or starter switch

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    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.

    If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

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    Guardian generac 10kw model 5502 does not output correct voltage


    the instructions says the voltage regulator is automatic/digital. when you check the voltage is there any load on the generator? if applying load to the generator doesn't help, you can manually change the motor speed where the governor connects to the carborator, but it may change the frequency, but the regulator may fix it

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    Generac Guardian 15 kw overspeed fault


    Did you remember to set the overspeed shutdown threshold on the control board?

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    My answer:

    Your Genset is made by GENERAC same as my personal 5500W home unit is. Great service and great Genset!!

    I never had any problems with mine other then the Poly gas tank valve stem gasket leaked from day 1, and they replaced it no bones 100% FREE upon request. I also requested both a Service manual and an Operators Manual and they sent me both FREE of charge as well. (I had no manuals with mine either, as I bought my Genset brand new at a garage sale for $300 - great deal)

    Just make sure when you call them (as with anyone seeking operator/setup manuals - that you tell them they got LOST in a recent move!) It helps - otherwise they (any company) might ask for a charge for them. Getting pretty bad out there everywhere thanks to you know who!

    Call the GENERAC toll free # below anyway - regardless what it says below about the GUARDIAN brand and where to get service. You want the Install / Service manuals only.


    Corporate Mailing Address
    Generac Power Systems
    Hwy. 59 & Hillside Road
    P.O. Box 8
    Waukesha, WI 53187

    GUARDIAN® Inquiries
    All GUARDIAN products are sold through and represented by our Independent Dealers, The Home Depot® stores, and GUARDIAN Authorized Service Centers nationwide. For information or questions about GUARDIAN products, please contact one of these representatives. To locate a dealer nearest you, please visit the Dealer Locator page on the GUARDIAN Web site.

    Generac® Inquiries / Customer Support
    For Information or questions about Generac generators, switchgear products or Generac OHVI® engines, please call the phone # below. If you need immediate assistance, our Customer Support Department is available Monday-Friday, 8:00 a.m. to 5:00 p.m. Central Standard Time.

    Phone: 1-888-GENERAC > 888-436-3722
    Fax: 1-262-968-3791

    Please post me a reply as to finding this solution being the best resolve to your GENERAC / GUARDIAN service manuals problem by following my recommendations above. Also please rate my troubleshooting fix as well.

    Keep me posted and I'll follow up as well.

    Best regards,

    Frank

    Sep 06, 2008 | Electrical Supplies

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