I too have Hughes and they are awful with custmer service - look up the Maryland head quarters and call them - the last time I had a problem this is what I did and I got a tech out with in 48 hrs and a months credit - now I just call Maryland and complain to them - hope that helps - Susan
The day you set the eggs is 0 then count 18 days - take eggs off turner and make sure you increase the humidy. Good luck - what breed are you hatching?