Unit not running (cooling)

Question

My 75BWC is 10 years old. The unit is getting power because the inside light comes on. However, the refrigerator is not running. No sound, no heat, nothing.I've not a great job of keeping it clean behind the bottom grate. Did I kill it? Would it be the motor or condenser? How could I tell?We have a kenmore wine refrigerator that is running but not cooling below 65 degrees. This has been like this for the past 6 weeks. Am unsure what may be the problem. Any suggestions?