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How to Locate Your Sub-Zero Appliance Serial Number

Identifying the serial number of your Sub-Zero appliance is essential when ordering parts or scheduling service. This guide will help you locate the serial number on various Sub-Zero models, including refrigerators, freezers, and wine storage units.

Understanding the Serial Number Format
Sub-Zero serial numbers typically consist of a letter followed by seven digits (e.g., M1234567). The letter represents the production series, and the numbers indicate the manufacturing sequence.
Why You Need the Serial Number
The serial number provides specific information about your appliance, including the model and production date. This information is crucial for:


1. Why You Need the Serial Number
2. Locating the Serial Number on Different Models
3. Understanding the Serial Number Format
4. Need Assistance?
5. Related Parts
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Locating the Serial Number on Different Models

Below are step-by-step instructions for finding the serial number on various Sub-Zero appliances.

Sub-Zero Built-In Refrigerators

Sub-Zero built-in refrigerator serial number location inside compartment
Classic (Built-In) Refrigeration
Includes models: BI-36U, BI-42S, BI-48SD, and others.
The serial number is typically located inside the refrigerator compartment.
  1. Open the Refrigerator Door: Access the main compartment.
  2. Look for the Serial Plate: The serial plate is usually found on the upper left side wall or ceiling of the refrigerator compartment.
  3. Note the Serial Number: The serial number is printed on the plate and usually starts with a letter followed by several numbers.
Sub-Zero Designer Series Refrigerator serial number location inside compartment
Designer (Formerly Integrated) Refrigeration
Includes models: IC-30R, IC-36FI, IC-24CI, and others.
Open the Appliance Door:
  • Access the interior of the unit.
Find the Serial Plate:
  • Located on the side wall inside the upper cabinet section.
Note the Serial Number:
  • The serial number is printed clearly on the plate.

Designer Tall (IT, DET), Designer Drawer (ID), and 700 Series
How to Locate Your Sub-Zero Serial Number and Model Number
  • Inside the cabinet to the left of the upper drawer.
Sub-Zero PRO Series Refrigerator serial number location inside appliance
PRO Series Refrigeration
Includes models: PRO48, PRO4850G, and others
Open the Refrigerator Door:
  • Access the main compartment.
Locate the Serial Plate:
  • Found on the top frame inside the unit.
  • Alternatively, check near the hinge area.
Record the Serial Number:
  • Starts with a letter and followed by numbers.

Sub-Zero Wine Storage Serial Tag Location

Sub-Zero Wine Storage serial number location inside unit
Wine Storage Units
Includes models: IW-30, WS-46, and others.
Open the Wine Compartment Door:
  • Access the interior shelves.
Find the Serial Plate:
  • Located on the left side wall inside the unit.
Take Note of the Serial Number:
  • Clearly printed on the serial plate.
Sub-Zero 315W and 400 Series Wine Storage serial number location behind kickplate
315W and 400 Series Wine Storage
Includes models: 315W, UW-24, BW-30, and 400 Series.
Access the Appliance:
  • Remove the kickplate or toe kick at the bottom of the unit.
Locate the Serial Plate:
  • Found on the compartment divider, directly behind the kickplate.
  • May require a flashlight to see clearly.
Record the Serial Number:
  • The serial number is printed on the plate and starts with a letter followed by numbers.
Additional Notes:
  • UW-24 Wine Storage:
  • Similar procedure applies.
  • The serial plate is behind the kickplate or toe kick area.
  • BW-30 and 400 Series:
  • Serial number location is consistent with the above instructions.

Sub-Zero Undercounter Serial Tag Location

Sub-Zero Undercounter unit serial number location inside compartment
Undercounter Units
Includes models: UC-24R, DEU2450W, and others.
Open the Door or Drawer:
  • Access the interior.
Locate the Serial Plate:
  • Found on the ceiling or side wall inside the unit.
Record the Serial Number:
  • Printed on the plate inside.
Sub-Zero Ice Maker serial number location inside unit
Ice Makers
Includes models: UC-15I, UC-15IP, and others.
Open the Ice Maker Door:
  • Access the ice compartment.
Find the Serial Plate:
  • Located on the inside wall or near the ice bin.
Note the Serial Number:
  • Clearly marked on the plate.
Sub-Zero Designer Drawer serial number location inside cabinet to the left of the upper drawer
Designer Drawer (ID) Tall and Drawer Models
Includes models: ID-24R, ID-30R, ID-30CI, ID-36R, ID-36CI, and other Designer Drawer models.
Open the Upper Drawer:
  • Access the interior of the upper drawer compartment.
Locate the Serial Plate:
  • Found inside the cabinet to the left of the upper drawer.
  • You may need to remove the drawer for better visibility.
  • Use a flashlight if necessary to illuminate the area.
Record the Serial Number:
  • The serial number is printed on the plate and typically starts with a letter followed by numbers (e.g., M1234567).
Explore our extensive collection of expert Sub-Zero repair guides and service manuals.
Comprehensive Guide to Replacing Sub-Zero Refrigerator Door Gaskets
Learn how to replace the door gasket on your Sub-Zero refrigerator with our step-by-step guide. Maximize your refrigerator’s efficiency and ensure a tight seal for optimal cooling.
Sub-Zero Repair & Maintenance Guides
Complete guides to replacing and installing replacement parts for Sub-Zero refrigerators and appliances. Learn how to properly replace gaskets, filters and other parts with our step-by-step instructions.
Sub-Zero Ice Maker Troubleshooting Guide – Comprehensive Solutions for Common Ice Maker Issues
Complete guide to troubleshooting Sub-Zero ice makers. Includes solutions, steps, and a link to our catalog for easy ice maker replacement if needed.
Step-by-Step Guide to Testing the Water Inlet Solenoid Valve for Sub-Zero Ice Makers
Learn how to test the water inlet solenoid valve in your Sub-Zero ice maker to ensure optimal functionality. Follow our diagnostic guide and find genuine Sub-Zero replacement valves.
How to Diagnose Cooling Issues in Sub-Zero Refrigerators: Troubleshooting the Condenser Fan Motor (Part #4200740)
Learn how to diagnose cooling issues in your Sub-Zero refrigerator. A non-functioning condenser fan motor (Part #4200740) is a common cause of poor cooling. Follow our guide to diagnose the issue and find replacement parts.
How to Check Sub-Zero Switches: A Comprehensive Guide
Learn how to inspect and troubleshoot switches in your Sub-Zero appliances. This step-by-step guide ensures your refrigerator or freezer operates at peak performance.
How to Locate Your Sub-Zero Appliance Serial Number | SubZeroParts.com
Find out how to easily locate the serial number on your Sub-Zero appliance with our comprehensive guide. Identifying your model is crucial for finding the right parts.
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