Hi,
I have the exact same generator with the exact same problem :(
My generator was working perfectly the day before Sandy hit...
now, all of the sudden my low idle stopped working and I'm unable to reset the GFCI's ...
I was told by my local repairman that that is two signs the the generator is NOT making any power??
I dropped it off at his shop, and so far I haven't heard a thing?
I'll let you know if/when I do??
my generator has 68 hours on it :(
goodluck , I know your state got hit really bad :(
lets keep eachother informed to any fixes we may find ok??
sorry I wish I could have been more help :(