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How can I make my Generac 7550EXL portable generator quieter?

I bought this generator a few years ago after experiencing a long power outage. Being a portable generator, it isn't the quietest. I'm afraid that if I start it up during the next power failure, my neighbors will complain. I wish there was a way to make it quieter. Any ideas?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

CarlGehrke
  • 169 Answers

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

CarlGehrke
  • 169 Answers

SOURCE: no power output from a generac c5000 generator

First check the circuit breakers on the control/outlet panel.
Then take the end off the generator and look at the brushes (usually what breaks) and the 2 slip rings they ride on (these get dirty and have to be cleaned off with a bit of emery cloth)
Then look at the voltage regulator (the little board that the brushes plug into)

Let me know if you need more detailed help,
Carl

Posted on Dec 03, 2008

CarlGehrke
  • 169 Answers

SOURCE: Generac Guardian 15kW Generator

That sounds just about right, if the relay contacts get welded together it sometimes takes out the driver on the printed circuit board. As you found out, 12vdc from 23 to 194 makes the transfer switch move to the Generator position, relay not energized makes the ATS move to the Normal position.

You can make a nice test function by installing a 10 amp contact switch in series with either the N1 or N2 terminals. When the switch is open the generator thinks the Normal power has failed.

Regards,
Carl

Posted on Jan 26, 2009

CarlGehrke
  • 169 Answers

SOURCE: 10kw Generac shut down overspeed

Make sure that the throttle linkage is all there and not damaged/misadjusted, then get a manometer and check your inlet gas pressure. Gas pressure should be 8 inches of water column and stay there running or not.

Carl

Posted on Apr 06, 2009

mamicheddy
  • 79 Answers

SOURCE: I have a Generac portable generator 5000 watts, won't start!

I am assuming the generator worked fine before the oil change. Now that you have done the oil change the genset does not start. These generators have a safety switch, which is basically an oil pressure switch that keeps the engine from running when there is not enough oil in the engine. Make sure that there is enough oil and if there is, look for a wire that runs along side of the engine to a round component. disconnect that wire and try starting. If it does not start then try to ground out the wire to the engine block. If this does not work, then there is other engine problems.

Posted on May 08, 2009

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  • Jun 28, 2016 | Generac Electrical Supplies

    1 Answer

    What kind of oil do you use


    Judy, Generac portable generator oil recommendations. Above 40°F, use SAE 30. Below 40°F and down to 10°F, use 10W-30. Below 10°F, use synthetic 5W-30. Oil should be changed after the first 8 hours of operation and every 200 hours of run time thereafter.
    Check the attached links,instruction and guides, Good luck
    "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

    http://www.generac.com/service-support/faqs/portable-generator-faqs

    http://www.generac.com/service-support/faqs/home-backup-faqs

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    Why does it crank and almost start on 1st try?


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    Reset change oil message on generac xp8000e


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    I have a generac 22kw model QT02224anan that will run for a few minutes then shut down , then the over speed led is lit. It only happens when it is under load or during a power outage. it goes through...


    its possible the overspeed is set to sensitive. or your rpm are to high. these are preset in the factory as a safety, check your manual to ensure your rpm speed is in the pre set area. generators will do this under load when you have a big load on them or take a load off. the governor will some times over compensate causing it to trip on overspeed.

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    Installed a generac 20kw about a year ago, ran fine untill 2 days ago. During a utility outage, generator ran for about 30 minutes and then stopped producing power while still running. All mains were still...


    With the engine off, check the exciter brushes and slip rings which supply magnetic power for the alternator winding in the stator. Also, check the motor-to-alternator mechanical coupling. Check the breakers for tripping. To service beyond this point requires a schematic of the alternator, a voltmeter, plus knowledge of what the schematic is telling you. Good luck!

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    At the point the transfer switchis suppose to transfer put a dc volt meter across terminals 23 and 194 in the transfer if you do not show 12VDC. Then you have a relay hanging upon the PCB board in the generator, need to replace board. If you are showing 12VDC and the switch is not transferring the problem is in the switch itself.

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    Have a 7550EXL Generac engine runs no output power.


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    Coleman 6200 won't work


    Hi Judy,
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    Be nice to the poor generator techs at the shop.

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