does any one have any information on cold tek main interface board?? Model and serial number to come (as soon as I find the piece of paper I wrote it down on)... cold tek is out of buisness. They link to a web site where i found the literature for the unit however the defrost/temp control listed is not the control on the unit. No model or any numbers on the control or board.. the front is blue, says cold tek on it. About 10" tall and 8" wide. lcd for ref on the left and lcd on right for freezer. Temp set up and down buttons. On/off buttons for ref and freezer. The unit is going into defrost to frequently. checked coil and case temp thermistor v.s. resistance and all four are correct. Sorry I lost the dang model # but I will locate or go back and get it..