Heater Sheath DA47-00424L

Hi David, Thank you for your question. If your refrigerator is constantly defrosting, there are a number of reasons why this may be happening. The refrigerator thermostat may be on the wrong setting. Also, if the there is frost on the evaporator coils, this can prevent the refrigerator from operating correctly. The refrigerator may have faulty wiring or there may be a refrigerant leak. Also, some of the parts responsible for the proper functioning of the refrigerator may not be working correctly. You will need to check the defrost timer, the evaporator motor, the condenser motor and the compressor. I hope this helps. Thank you and have a great day!