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Model reference

Sub Zero 648PRO

Refrigerator

11 documents34 error codes22 service modes

Available documentation

Service Manual

  • Service Manual 648PRO101 pg
    Covers this model
  • Service Manual 648PRO 89 946 pg
    Covers this model
  • Service Manual Pro-Series (648PRO)4 pg
    Covers this model
  • Technical Service Manual Pro-Series (Model 648PRO - AKA PRO48)120 pg
    Covers this model
  • Pro-Series (Model 648PRO - AKA PRO48) Technical Service Manual120 pg
    Covers this model
  • Pro-Series Technical Service Manual (Model 648PRO - AKA PRO48)120 pg
    Covers this model
  • Sub-Zero Service Manual: 648PRO — Service Manual100 pg
    Covers this model

Wiring Diagram

  • Pro-Series (648PRO) Wiring Diagrams/Schematics4 pg
    Covers this model

Installation Guide

  • PRO 48 Installation Instructions16 pg
    Covers this model

Parts Manual

  • Sub-Zero Parts Manual: 648PRO — Parts Manual9 pg
    Covers this model

Quick Reference

  • Condensed Electronic Control Information Booklet126 pg
    Covers this model
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Error codes (34)

CodeMeaning
01Zone X Cabinet Thermistor Failure (Device or Wiring)02Zone X Evaporator Thermistor Failure (Device or Wiring)03Zone X Condenser Thermistor Failure (Device or Wiring)04Ambient Thermistor Failure (Device or Wiring)20Check Zone X Defrost Bi-metal for Proper Operation21Check Zone X Defrost Bi-metal for Proper Operation22Check Zone X Defrost Wiring23Check Zone X Defrost Wiring24Check Zone X Defrost Heater Ohms30Check for Stuck Icemaker or Water Valve Failure35Zone X Fan Speed Error40Zone X Excessive Run41Check Zone X Compressor and Wiring42Check Condenser Fan and/or Wiring43Check Left Refrigerant Valve and Wiring44Check Zone X Glass Door Heater and Wiring45Errors Detectable with Red Door Switches46Check Ice Accessory Wiring for Open Circuit47Check Accent Lighting Wiring for Short Circuit80Check Power to Compressor Controller for Zone X, Troubleshoot with Manual…83Replace Zone X VS Compressor and Filter-Drier84Check Zone X VS Compressor Wiring85Zone X VS Compressor Control Overheat86Check Communication Wiring, Replace Zone X VS Controller87Check for Broken Wiring or Open Defrost Heater89Check Icemaker Solenoid Valve and Wiring90Change Main Control Board91Primary on accent LED power supply failure92Check Keypad Wiring93Replace Keypad
View all 34 error codes
94Check Wiring / Replace User Display (Zone 1 = Display #1, Zone 3 = Display #2)96Datalogger Malfunction97Check Communications Cables / Connectors98Brownout

Service modes (22)

  • Diagnostics - Activate Zone1) Initiate Service Mode
  • Diagnostics - Activate Zone (Manual Activation Mode)Enter Service Mode (COLDER + POWER)
  • Diagnostics - Clear Error History1) Initiate Service Mode
  • Diagnostics - Error HistoryEnter Service Mode (COLDER + POWER)
  • Diagnostics - Self TestEnter Service Mode (COLDER + POWER)
  • Diagnostics - StatisticsEnter Service Mode (COLDER + POWER)
  • Diagnostics - Thermistor Read1) Initiate Service Mode
  • Diagnostics - ThermistorsEnter Service Mode (COLDER + POWER)
  • Manual Freezer Evaporator DefrostPress and hold the ICE MAKER key for 5 seconds.
  • Manual Zone Disable ModeWith unit ON, press and hold the WARMER key for the zone being disabled, then press the POWER key…
  • Model InformationEnter Service Mode (COLDER + POWER)
  • Operational StatusEnter Service Mode (COLDER + POWER). Press ALARM to navigate to 2) Op Status. Sub-menus
  • Operational Status - Ice Maker1) Initiate Service Mode
  • Operational Status - Zone Status1) Initiate Service Mode
  • Sabbath Mode1) Switch unit OFF using POWER key
  • Service ModePress and hold any COLDER key, then press the POWER key, then release both keys.
  • Service Mode (contains Diagnostics, Operational Status, Model Information, Version Information sub-modes)Press and hold any COLDER key, then press the POWER key, then release both keys
  • Service Mode (Main)Press and hold any COLDER key, then press the POWER key, then release both keys.
  • Showroom Mode1) Switch unit OFF using POWER key
  • Temperature Units Selection ModeWithin the first 1 minute after switching the unit ON, press and hold the ALARM key and the POWER…
  • Temperature Units Selection Mode (°F / °C)Within first 1 minute after switching unit ON, press and hold the ALARM key and the POWER key…
  • Version InformationEnter Service Mode (COLDER + POWER)

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