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Low voltage readings on Generac Centurion 3250 Generator

110 and 230 outlets only show 50 volts

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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CarlGehrke
  • 169 Answers

SOURCE: generator wont put out enough voltage, only get 107 volts, is this a voltage reg. problem

This problem is either that the engine RPM is too low (most likely), or that there is something amiss in the voltage regulation. Get yourself a DMM that measures Hz, plug it into the output and see if you get 61.5 Hz, if not look for the adjustment on the governor spring. On some Powermates this is a screw that pressed on the governor arm, on others it's a little tab the governor spring attaches to that you bend. Do this at no load. FWIW 61.5 Hz is also 3750 RPM of the engine.

Posted on Dec 01, 2008

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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: 20KW Guardian Generac does not produce 12 volts to run engine

The problem is that the printed circuit board inside the generator draws a little current from the battery even when the generator is not running. Over the course of a few days this can make the battery weak enough to be unable to get recharged by the built in running charger which results in not enough power to run the electronic governor on the generator. Usually the spark plugs will work even with a fairly low battery.

Most of the Generac generators come with a built in trickle charger that runs off of the transfer switch load terminals. If your built in charger isn't doing the job it's either broken or you have the wrong sort of battery installed in the generator.

Regards,
Carl

Posted on Jan 26, 2009

  • 83 Answers

SOURCE: three year old coleman 5000/6250 generator. High

Your RPM's are too high. There is no voltage regulator in coleman generators (generator is actually made by generac) and is 100% dependent on engine speed. There is a screw under the tank when your looking in from the recoil side. It controls the governor arm. Screw it in and it incresses the rpm, out decrease. Plug something in that draws a decent load while setting the rpms since you want it to put out 120 and 240 underload. Your idle voltage does not matter.

Posted on Apr 02, 2009

mydogisk
  • 50 Answers

SOURCE: 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

Posted on Apr 13, 2009

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https://www.generatorguru.com/help-me-fix-my-generator-repair-advice/

We also hold some parts for generac generators if you need them. You can purchase them on this web page:

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I'm an electrician and would like to help you. Assuming you're in the U.S. and this is an electric dryer (not gas), you will need to find a 240 (a.k.a. 250) volt / 30 amp circuit to connect it to for it to work. This would be connected to a double pole 30 amp circuit breaker in the electrical panel. There is no simple residential "adapter" to change voltage, current or number of wires - besides the old 3 wire grounding plug adapter in you grandmother's junk drawer. (What is a 50/250 volt dryer? - did you mean a 30A/250V?)

Your dryer should have a 4 wire cord with a 4 prong plug on the end - and it will need to be plugged into a matching outlet. The old electrical code allowed you to change the cord to match the outlet, but now it requires that both the cord and the outlet be a 4 wire type. The old 3 wire cord type is no longer permitted to be used when the dryer is moved or replaced. Of course, 3 wire cords are available everywhere and it is unlikely that anyone will turn you in for changing the dryer's 4 wire cord back to a 3 wire cord type (but I just wanted to tell they way it is supposed to be done). What you do - is your business.

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