Question about Sub-Zero Refrigerators

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I get error message 24 EC , the service light flashes the refrig section won't go to below 42 degrees. It is a model 642, side by side.

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  • purchaser Sep 15, 2009

    I tried disconnecting the unit for 10 minutes. Then plugged it in and waited overnight. The message has stopped appearing BUT the refrigerator side will not go below 42 degrees. The freezer side will go to the setting (i set it at -2 degrees). Is there a mixing unit of some sort between the freezer and refrigerator that might be preventing some of the colder air from reaching the refrigerator side?

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Hi

Thanks for using FixYa. Error code EC 24 means Defrost Under-heat. This error code means a fault in defrost system or freezer, but it is usually a false one. The control board on this vintage model didn't have the correct error code to report so it came up with the last code it knew.
You can try and reset the code by pressing and holding bell on/off key for 15 seconds. Also check if the condenser is plugged with dust bunnies.

Please do accept the solution if the issue is resolved or else revert for further assistance.

Thanks
Rylee

Posted on Sep 13, 2009

  • Rylee Smith
    Rylee Smith Sep 15, 2009

    Hi





    Unfortunately your defrost system has gone
    faulty and you’ll need to replace the defrost thermostat and/or timer for
    correcting this issue. Please check the defrost timer first, if the timer is
    fine, then you’ll need to replace the defrost thermostat. You can check the
    timer and thermostat by using a multi meter. Also make sure that the condenser fan
    is working fine. You can buy the parts from this link---





    Sub-Zero
    642 Parts






    Please do accept the solution if the issue is resolved or
    else revert for further assistance.




    Thanks

    Rylee




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