Question about Generac 6051 Guardian Series Air-Cooled 10kW 120/240V Single Phase Steel Residential Generator with Nexus Smart Switch

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Generac model 60511 10kw, 240VAC is ok, but 210VAC-gnd and 80VAC-gnd?

I just got the generator installed and when performing voltage checks I discovered there are 240VAC on the phase OK, but when I checked each leg to neutral/ground, I found fluctuating voltages. On one leg, the average was 208VAC, on the other the average was 84VAC. All of these voltages were read under no load conditions. I am reluctant to load the generator until I can verify these are not dangerous conditions. Thanx for any help.

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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

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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

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mamicheddy
  • 79 Answers

SOURCE: generac model # 09734-1 no voltage output. would like a manual

Flash the fields. Remove front cover from the generator end. You will see the brushes and rings on the rotor. The ring closest to you is positive and the ring closest to the rotor windings is negative. With a 12 volt batttery and the generator running, place the positive side of the battery to the ring towards you and negative to the back ring. Make sure to use jumpers and keep fingers away from rotating parts and don't get zapped. You should see output voltage increase. If it does, your voltage regulator is bad, if it doesn't your generator end is bad.

Posted on May 07, 2009

  • 384 Answers

SOURCE: 10kw Generac Guardian not cranking, shows rpm sense loss

Sounds like Generator mode switch should be "ON".

Posted on Sep 08, 2009

  • 905 Answers

SOURCE: Generator was running and quit delivering voltage

It very well may have been a breaker that opened up permanently.

But, I bet that the generator was under heavy load for prolonged time, and one / both of the diodes in voltage regulator have opened up. You will have to disassemble the end housing of the alternator to get to these, and then test with multimeter to know for sure.

Of course, your generator may have an electronic controller, and not use diodes / capacitor at all. Since don't have model #, can't be sure.

If engine has dropped much under 1800 (4 pole alternator) or 3600 (2 pole alternator) RPMs, then alternator output would tank or be nonexistent.

Posted on Jan 04, 2010

wentlanv
  • 710 Answers

SOURCE: Just returned from a trip

Hi Scott,

Since the generator starts but there is no power to the control board, there is an electrical problem inside the generator.
First check the circuit breaker at the back of your generator. If the breaker is on, then your generator is in serious trouble.
Call a repairman, but also keep in mind you may need a new generator.

Hope this helps. If it does, I'd appreciate a 4 thumbs up. Thanks,

Handie Andie

Posted on May 07, 2011

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I need a rectifier or avr for generac 3500 xl genarator


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