swp5767
Hello, I am having power fluxuations with my genny under a load. I did some load testing and posted some videos on youtube to show.

The unit is 2.5 yrs old with 159 hrs on it. It is used on a regular basis and had a complete service last Nov. I cant remember how long this issue has been happening. I do believe it was happening before it was serviced, but not as much.

They are in order of my test. The total test time was 30 min.

Check the video descriptions for more details.

[url]http://www.youtube.com/watch?v=hbYb1aAl1oE[/url]

[url]http://www.youtube.com/watch?v=UZhiOxs3Q3E[/url]

[url]http://www.youtube.com/watch?v=sjZGAhymAlA[/url]

[url]http://www.youtube.com/watch?v=8gsNg69uaxo[/url]

Let me know what you think and thank you for the help.

Steve
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johnc
What happens to your plug in meter with utility co. power?
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swp5767
No issues there.
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d11gnccer
How long has the gas been sitting? The new blends are junk. If my dirtbikes sit longer than a month the carbs have issues with plugged jets and things along that nature. When they did full service was the vavles adjusted?
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swp5767
Gas is not an issue. I use this rv every weekend. There is always fresh gas in it.

Yes, the valves were adjusted.
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bronco
Is the engine hunting also or just the voltage?
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swp5767
The engine runs perfectly smooth.
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swp5767
Does the voltage regulator manage incoming or outgoing power from the genny?

If if manages output, is it adjustable? I saw a pic of one and it looks like it has a pot on it, but not sure.
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bronco
The VR just handles output to the load. The pot is for voltage adjustment up or down. Is the hunting just on the A\C or other things? You might try to use a couple of hair driers pluged in to see if the problem is still there (no A\C) most of the time hunting of voltage is a resualt of engine hunting.
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swp5767
Ok. I turned on a hair dryer (1875 watts) and microwave (1100) watts. The power meter needle stayed very steady.

What can that mean? Something wrong with the AC? Its a 3yr old Carrier Air V 13.5k.
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swp5767
I went back and tested with the AC again. When it was on high cool and compressor running, the voltage would fluctuate. If I moved it to low cool and warm it up to where the compressor kicks out, the power stays steady.

I also tested it with the microwave and toaster oven both on, it was a heavy load but it was steady.
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johnc
Some rough estimates: A/c 220v x 15 amp = 3300 w
blower 120v x 6 amp = 720 amps
Granted there is a power factor involved which lowers actual amps. Really need a true watt meter to get actual watts. Try hair dryer, micro, refrig, air handler blower. Do you have an amp probe? Is one leg of your panel box drawing more amps than the other leg? Are you in a very hot environment? That will increase a/c running amps. Does your a/c cool properly when running?
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swp5767
John, I only have 110VAC at 30amp service. Yes, the AC cools fine.
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ceb58
Sounds like the winding are starting to break down or there is moisture in the compressor and it is leaking a small amount of voltage to ground. Probably not enough to detect when on utility power and certainly not enough to trip out a breaker but it may be enough to throw the regulator out. Or it could be the start/run capacitor is weakening.
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bronco
Generator is not the problem, sorry. I would have the A\C checked out seems like there is a problem with it or the wiring. Good luck
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swp5767
Bronco, its looking that way.

THanks again for the help everyone!!
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