I have an 2003 Amana #BCI20T bottom freezer refrigerator. The freezer is just cold and will not freeze anything. No frost on the coils. Replaced the thermostat part #10442411 which was covered in ice. I dropped it just before instillation, hope this did not effect it. It still isn't freezing. I do have part # P1309702WL the timer defrost however, I do not know where to install it. The fan is working. Before I installed the thermostat part I could put a bag of ice in the freezer area and it would last me a few days. Now when I put a bag of ice in it starts to melt and only last one day. I have seemed to made more of a problem. Help me to get my freezer to work.