What Is the Sub-Zero 0037 Code?

When you see 0037 appear on your Sub-Zero refrigerator panel, it’s usually a secondary diagnostic code that shows up alongside a primary error (like 50 EC). Unlike the main codes, the four-digit reading is an internal identifier for service technicians.

Why Does 0037 Appear?

Sub-Zero appliances are designed with highly specific sensors and control boards. Codes like 0037 help narrow down where the problem is happening, for example:

  • Identifying a particular sensor reading.
  • Logging the board firmware or compressor cycle at the time of the error.
  • Flagging service history for troubleshooting.

What You Should Know as a Homeowner

  • 0037 is not a stand-alone error. It’s linked to a main code (like 50 EC).
  • It does not always point to a single part failure by itself.
  • It’s a “technician language” code,  meaning your service provider will use it to interpret the bigger picture.

What To Do Next

If you see 0037 along with 50 EC, follow the same steps:

  • Clean the condenser coils.
  • Check airflow and door seals.
  • Reset the panel.
  • If the code returns, schedule service.

Bottom Line

The 0037 Sub-Zero code is a supporting number, not a problem by itself. Think of it as a “chapter note” in your refrigerator’s error log. Pair it with the main code (like 50 EC) to guide diagnosis.

If your Sub-Zero is showing 0037, call AAA Appliance Service Center. Our factory-trained team will interpret both codes and get your fridge running efficiently again.