i have an amana bottom mount freezer model BRD18V2S that decided it doesn't want the freezer to freeze. i have no experience in refrigerator repairs but im willing to try to fix this one. here is what it does, i can feel a cool breeze in the fridge compartment and the freezer compartment is not freezing and a lil warmer than the fridge. i can also here it going into a defrost cycle where it shuts down then after a period of time it clicks back on. i need help to figure out what part or parts to change. thanks stuart