sscott
This fall utility service outage and generator did not come on. Checked to find out the battery was dead. Replaced battery, Generator starts great however no power from generator to house.  Turned off breaker in house and generator kicked on as designed, still no power to house.  Turned off to wait for contracractor who installed, who still hasn't showed up.  Turned back to auto today, runs 12 min, No Power, turns off for a couple seconds then starts back up. All fuses good, panel good. It's like on a small generator field needs flashed but not sure about on this type of set up.

Purchased 2009
Model #:55010
Serial #:5244172
Fuel source: LP
Last maintenance date:2016
Last battery replacement date:2018
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Peddler
That unit does not get a field flash, it has a capacitor to regulate the voltage and the rotor is designed to maintain residual magnetism.  My guess you will find the 59 uF 440 VAC running capacitor is bad.
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78buckshot
sscott, first thing to check is the main line circuit breaker at the generator, flip it off and on a couple times. I'm thinking it is producing voltage or it would shut down on an "undervoltage " fault and would not re-start on it's own until the fault is cleared.
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JayH
Check power at the generator and load side of the main line breaker, it could be a bad breaker.

Also check for 12 volts DC nominal to ground on wire 194 of transfer switch and a ground on wire 23 of transfer switch when simulating a power failure. It's possible that the generator is in fact producing voltage but the transfer switch isn't operating.
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sscott
Peddler wrote:
That unit does not get a field flash, it has a capacitor to regulate the voltage and the rotor is designed to maintain residual magnetism.  My guess you will find the 59 uF 440 VAC running capacitor is bad.


Bingo, bad capacitor, The problem still exists though that after the 12-minute cycle and shutdown it is restarting.
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Peddler
Is it putting out power to the breaker?  The restarting after an exercise cycle is either a bad set exerciser switch or a bad control board.
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sscott
Yes putting power through breaker and to house, however, when power restored, generator shut's off at the 12 min mark then immediately restarts and continues to run.
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78buckshot
Clean and tighten ALL grounds, I had one with similar issues and it was the ground for the controller.
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Peddler
I suspect you have a bad controller or at least the wafer switches in the controller.  I have seen these get algae or fungus in the switch pads and cause them to repeat exercise, I don't think they can be taken apart but you don't have much to loose. 
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sscott
Peddler wrote:
I suspect you have a bad controller or at least the wafer switches in the controller.  I have seen these get algae or fungus in the switch pads an d cause them to repeat exercise, I don't think they can be taken apart but you don't have much to lose. GEN0J0064_MEDfile_800_Store__37072.1492390635.jpg

when you say controller you mean the control panel?
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sscott
When you say, controller, you are referring to the control panel? GEN0J0064_MEDfile_800_Store__37072.1492390635.jpg 
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78buckshot
Yes sscott, Peddler is referring to the control panel you have pictured.
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