"Can somebody 'splain that last stateMENT?!?"
Easy, they meant an AC mains
outlet, not an AC outlet on your inverter being powered by the same batteries you are charging
. Or, they have a perpetual motion machine.
As to checking your genset for 60Hz in order to keep the icemaker happy...That might not be so easy. What you can do is put the genset's output on an oscilloscope display to check both the frequency and the waveform. (See what you got into now?<G>)
Plain AC mains power has a fairly simple sinousoudal waveform, aka "sine wave". Many gensets don't produce a sine wave, they often produce a square wave, or some stepped-wave that approximates a sine wave, or a range of other wave forms.
A plain resistive load like a toaster or hairdryer works pretty well on any of them. Things with motors, can be more picky. Electronics
, even pickier. So even if the genset is running at exactly 60Hz, it is possible the icemaker wants to see a real sine wave, and it isn't seeing one. Easier to call the genset maker and ask, if you don't have an oscilloscope onboard.
Incidentally, even some of the Honda
gensets have problems in that area, there are warnings to use the 12 volt DC they produce for charging
only--not running 12V devices--because their DC isn't so clean either. (Fair's fair, their manuals
say it is only suitable for battery
charging on the 12V side anyway.)
Makes you yearn for kerosene lanterns and simple questions and answers, doesn't it?