From manual
automatic cooling unit cycling system and low ambient control The refrigerator has been design with an automatic cooling unit cycling system that helps reduce frost build up in the fresh food compartment. The first automatic frost reduction cooling unit cycle begins 60 hours after turning “on” the refrigerator (for best operational results the refrigerator should be turned on anytime between 4 and 10 PM), and will last for approximately 120 minutes. Thereafter, the cycle will automatically repeat every 48 hours as long as the refrigerator continues to run. The automatic Low Ambient Control (LAC) ensures troublefree operation in low ambient temperatures (e.g below 50° F
Look through trouble shooting portion. There is a diagnostic test.
Manual