0 0 My Admiral refrigerator is not cooling properly. Model Number as20m7a Refrigerator Admiral Share Facebook Twitter Google+ Tumblr LinkedIn Mail Patrick's Appliance Service asked 6 years ago Answers (1) Filter Sort by: Most Votes Newest FirstOldest FirstRecently Active Post Answer Keyword Match all Match any 0 0 You have one of three possibilities. 1) defrost timer 2) Defrost thermostat 3) Defrost heater . The defost heater is most common on this model See links below. Part defrost heater AV Repair Help answered 6 years agolast edited 6 years ago You must login to reply Showing 1 result Your Answer Please login first to submit.