Many times a freezer and/or refrigeratordo not work right because of a dirty condenser coil...there are also many otherthings that can go wrong.
If you are hearing a clicking or buzzing then check out thelast two tips.
If your refrigerator is running but warm, then...
Check out this tip that I wrote about that... it is a great place to starttrouble shooting your unit...and something that you can do rather then callinga repair person to do a simple thing for you...
Refrigerator Condenser Coil Cleaning
Refrigerator RepairRefrigerator Troubleshooting
Refrigerator CompressorRefrigerator Compressor
Start Capacitor and Start Relay