This Thermo Forma 3710 Refrigerated BOD Incubator Freezer is in for parts or not working condition due to a malfunction that is shorting out unit when in operation. The issue seems to be from the Ranco Electronic Temperature Control unit but we cannot say for sure. Freezer is in otherwise great condition. We urge customers to view all photos as they show overall condition, included accessories and useful information. Please feel free to contact us with any questions.