Yea, that was my issue. they are good little incubators but the thermostat is expensive for what it is.. I know a lot of folks hate wafers but Ive had good service from them.. Ive got two at a local school right now with wafers and since I set them for the classroom temp I have not had to touch...
I have had three for about 12 years... I've rewired the thermostats on two of mine that died.. first one I put another electronic in and it lasted about 2 years and went out again.. Now I rewire them with a Wafer thermostat.. I put my own light in too.. With the newer heat element and fan that...