I just fired up my Turbo-fan Hovabator for the third year in a row and the temp seems to be fluctuating more than it ever has. The past two years it ran nearly constantly from spring to fall with little to no adjustment in the thermostat, I have a LG still air that I use for hatching so the hova stays clean. I set up the hova last week, got the temp up for a day, set the eggs and the temp dropped initially (like always) then came up for a couple days. Then, out of the blue the temp dropped to 95 for two days, I tried adjusting and the next day the temp was up to 103! I've been trying to get it to stabilize ever since (threw the eggs out ) It's been sitting at 99* for the last couple days but seems to have a hard time staying there (min-max thermometer shows it's been ranging from 98-101). I've got the incubator in the basement where it stays cool (60*) but that's where I've always had it- never had this problem before. How long do these incubators last? My only explanation is that it's dying of old age. Any other suggestions?