I bought a Brower Top Hatch Plastic incubator a couple months ago from a seller on Craigslist and paid almost $100 for it. He said it worked perfect! When I got it home I plugged it in and it did the same thing yours is doing. We tried to adjust the temperature for 3 days, nothing worked. So I went online and pulled up the manual for it, not much help there so we contacted the company Brower They was great! They had me mail it to them and they fixed it for free!
It came back to us in perfect working order! All it cost me was the $18 to ship it to them. Contacting the company that makes your incubator is not a bad thing. You should be able to email them. As far as your fertile eggs goes you may have to go to TSC to pick up a new incubator or throw your eggs out. Wish You Good Luck!