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736 Series Error Code 40


  • Error code EC 40 and Service flashing on control panel
  • Error code 40 is displayed on 736 Series
  • 736 Series displays 40
  • 736 40


  • Excessive freezer compressor run


  1. If temperatures are high, and it is not likely a door ajar situation, contact Factory Certified Service.
  2. If temperatures are near normal:
    • Clean the condenser.
    • Press and hold the door ajar alarm key for 15 seconds to clear the error code.
  3. For Designer (Formerly Integrated) products, make sure the kickplate is not completely covered by the custom toe kick or enclosed in custom cabinetry.
    • Even if the unit has worked like this for years, it can cause issues, including sealed system failure.
    • Refer to the Sub-Zero Design Guide for design specifications.


If these steps do not resolve the issue, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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