I am on the end of day 18 and my bator is acting funny. Since i took the eggs of the turner it wont heat past 98F. THe bator turns on and off but it wont go higher. Is it the wafer or should i replace the whole switch? Right now i got some heat cable in the bator to keep the temp up. But i need to fix it right since i have soem Serama eggs coming on thursday from Texas. Can i get a wafer from TSC or my local feed store or should i rig up a home made bator?