Question about Generac Electrical Supplies

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Generac XG8000E only producing 67volts on each leg.

Was utilizing the gen for several hours after a power outage when suddenly the gen output dropped to 67 volts. I check both legs of the 220v side and both were 67vac. Let the gen set for a few days and tried again with the same results. Gen appears to run fine and rpms don't seem low.

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  • Generac Master
  • 2,010 Answers

Beware of an adjustment complexity with an new kind of poweroutlet automatic voltage regulator avr , have you measured the generator UNLOADED for 230 volts ?
because it can be normal that 67 volts output changed when you connect an paint heat gun i was surprised a few weeks ago that i get an GENMAC 8000 that is a look a like generator coming from china build . first i was measuring some of the same output AC instead of 230volts.

Posted on Jun 28, 2019

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4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 30 Answers

SOURCE: 220v loss on one leg...

ok. lets make some assumtions. You must be of some electrical background to take a measurement such as 240v 21v. I will also assume you are measuring to ground (the half U).
I will also assume you are measuring at the wall recepticle(plug on wall / or even in the back of the range itself if no plugin)
1) four colors there. red, black, white, bare. or u-ground, middle-white, either side red/black.
2) measure from ground (U) to either side. should show 110v each.
3) measure from middle blade to either side and it should show 110v each
4) if either of those reads are not that, then you can look for a nail or a sharp edge that has poked through or cut through the range cable between the panel box and the range.
5) when you find the problem call an electrician in to fix it. it shouldn't cost much as you have done all the leg work.
6) one more thing- make sure the power at the panel box is 220v. I'm not sure how you did that this far, but you must use extreem caution as not to get zaped.
CAUTION must be used with cheap meters, as they can fail also.
7) if the break is close to one end, the electrcian will probebley add on some new cable and you will be ok.
call back with more info if you want :)

Posted on Jan 31, 2008

mamicheddy
  • 79 Answers

SOURCE: Generac portable generator doesn't produce power

Remove front cover on the genset and you will see the brushes and rings. Clean the rings if black with emory cloth and inspect brushes. Flash the fields by apply a 12V battery to the brushes. the brush closest to you or the bearing is connected to the positive side of battery and the back brush is negative. You have to do this with genset running. You should notice your voltage climb up to over 50Vac maybe even over 100Vac. Make sure to use rubber gloves when flashing fields and keep hands away from rotating parts. if voltage does increase when flashing the the voltage regulator is shot. If voltage does not climb then you will need a new genset or generator end.

Posted on May 15, 2009

SOURCE: Have a 15Kw Generac generator runs sometimes, have to use ext battery to start and run. Disconnect ext batt and volts at gen bat drop to 6-8 V

You have a bad battery. Replace it, and you'll have a fully functional generator. Trust me; I've been there & done that!

Posted on Sep 21, 2015

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