Sub-Zero 650 Support Question
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Question posted by eileenbutts11 on August 31st, 2013
What Does A 'service 21 Ec' Code Mean For A 650 Model?
Current Answers
Answer #1: Posted by TexasDeviL on August 31st, 2013 1:30 PM
Error codes (EC) for Sub-Zero 600 Series refrigerators
05-08: Refrig. Cabinet, Refrig. Evaporator, Freezer Cabinet or Freezer Evaporator Thermistor open or shorted for 10+ seconds, or repeatedly read erratic temperatures.
20: Defrost Under-heat with No Voltage Feedback Through Gray/White Wire at Defrost Start.
21: Defrost Overheat
22: No Voltage Feedback through Gray/White Wire at Defrost Start.
23: 21 and 22 together.
24: Defrost Under-heat.
30: Excessive Icemaker Water Valve Solenoid Activation (longer than 15 seconds).
40/50: Excessive Freezer/Refrigerator Compressor Run.
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