Worried about my incubating Sumatras

[maltazep]

I am new to incubating, I got a new Janoel24 incubator and started incubating my first batch of Black Sumatras. I followed the instructions exactly as it was stated and the only problem was that the humidity was always a bit high about 60-70% apart from that the first 10 days everything was perfect but after 10 days I noticed that the temperature was getting higher than 38(the temperature the bator is set). One day I even found it at 39.2 when I candled the eggs all where still alive but I noticed that the air sack was very very big. Today is day 16 and just candled the eggs again, still all alive but I am worried that they may not be healthy

 

[tec27]

You should be fine. Next time make sure that humidity for the first 18 days is lower (30-40%).