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Error code reference

Sub-Zero Refrigerator Error Codes: What They Mean and What to Do

When your Sub-Zero refrigerator shows a code, it is pointing at the part of the cycle that failed. This page lists the 25 codes we could confirm in Sub-Zero's own owner's manuals and support articles: what each one means, the checks that are safe to do yourself, and the point where a technician should take over.

Compiled by the Appliance Surgeon team from Sub-Zero documentation · Last checked

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At a glance

Sub-Zero refrigerator codes and what to do

Covers US full-size Sub-Zero built-in, integrated, column and PRO refrigerators/freezers: older 600 Series, 700 Series/IC-27, 648PRO, Legacy Classic (BI), Legacy Designer (IT/IC/ID), PRO3650/PRO4850, plus current Classic (CL) and Designer (DET/DEC). Older 600/700/648PRO units show words (SERVICE, ICE) and EC codes, Legacy Classic uses icons (wrench, bell) and three-part codes, and touch-screen models show plain-text messages.

Older models flash SERVICE (sometimes with ICE or an EC code) between the temperatures; Legacy Classic lights a wrench icon, often with a chime; touch-screen Designer models list errors under Settings > Information, and connected units can push them to the Sub-Zero Group Owner's App. Sub-Zero's usual reset is the home breaker off for 30 seconds; on 600/700/648PRO, holding the bell key 15 seconds clears EC codes once temperatures are normal.

CodeMeaningWhat to do
SERVICE (flashing)Compressor running too long; possible cooling problemCheck, then call if it returns
SERVICE (steady)Fault codes stored in memory and not yet clearedNeeds a technician
Wrench icon flashing + chimeMajor fault code logged by the controlCheck, then call if it returns
Wrench icon steady + chimeMinor fault logged; food temperatures not at riskCheck, then call if it returns
Vacuum CondenserUnit running inefficiently or temperatures too highCheck, then call if it returns
SERVICE + ICE (flashing)Ice maker water valve stayed open too long; ice maker shut offCheck, then call if it returns
EC30Ice maker shut off after too much water valve activationNeeds a technician
EC40Freezer compressor running excessivelyCheck, then call if it returns
EC50Refrigerator compressor running excessivelyCheck, then call if it returns
EC21Defrost overheatCheck, then call if it returns
EC24Defrost underheat (defrost not warming enough)Check, then call if it returns
EC20Freezer defrost terminator (bimetal) faultNeeds a technician
EC05 / EC06Refrigerator temperature sensor erratic, open or shortedNeeds a technician
EC07 / EC08Freezer temperature sensor erratic, open or shortedNeeds a technician
EETemperature sensor failed (left side freezer, right side refrigerator)Needs a technician
Door alarm (bell icon flashing)A door or drawer has been open too longUsually a quick fix
Water filter indicatorWater filter life used up; replace the filterUsually a quick fix
Air purifier indicatorAir purification cartridge due for replacement (about yearly)Usually a quick fix
H2 LOWater dispenser locked after long or heavy dispensingUsually a quick fix
L0 CControl got a command while sensing the door closedCheck, then call if it returns
ShowroomDemo mode: lights and display work, cooling is offUsually a quick fix
SAbSabbath mode on; lights, ice maker and door alarm disabledUsually a quick fix
40 1 40Excessive run time in one section or zoneCheck, then call if it returns
15 1 01Compressor relay stuck closed (1 = refrigerator, 2 = freezer)Needs a technician
10 F 00Evaporator temperature sensor open, shorted or unstableCheck, then call if it returns

Safety first. Switch the appliance off at its power button and unplug it or turn off the breaker before you clean a filter or check a hose. If you smell gas, leave the home and call your gas utility from outside. If there is a burning smell, smoke, sparking or water near wiring, stop using it and keep it off until it has been checked.

Code by code

What each Sub-Zero refrigerator code means

SERVICE (flashing)Compressor running too long; possible cooling problem

Check, then call if it returns

Also shown as or same meaning as: Service flashing

Applies to: 600 and 700 Series, IC-27 integrated columns, 648PRO (word flashes between the temperatures)

Common causes

  • Dirty condenser
  • Door or drawer not sealing
  • Fan, temperature sensor or sealed-system fault

What you can safely check

  • Check the temperature readings; if they are high, book service right away
  • If temperatures are near normal, clean the condenser as your use & care guide shows
  • Make sure nothing inside is stopping the door from closing fully
  • Switch the home breaker off for 30 seconds, then on, and retest

Call a technician if: Temperatures stay high, or SERVICE returns after cleaning and a reset

Source: [1], [2], [3]

SERVICE (steady)Fault codes stored in memory and not yet cleared

Needs a technician

Also shown as or same meaning as: Wrench icon steady, no chime

Applies to: 600/700 Series show SERVICE; Legacy Classic (BI) shows a steady wrench without a chime

Common causes

  • Earlier fault logged by the control
  • Codes not cleared after a previous repair

What you can safely check

  • Confirm both sections are cooling to their set temperatures
  • Write down any code shown before you call

Call a technician if: The indicator stays on; Sub-Zero gives no owner fix for it

Source: [4], [5]

Wrench icon flashing + chimeMajor fault code logged by the control

Check, then call if it returns

Also shown as or same meaning as: Service wrench flashing

Applies to: Legacy Classic Series (BI)

Common causes

  • Temperature, ice maker or component fault detected
  • Condenser needs cleaning

What you can safely check

  • Deal with any warm-temperature or ice problem first
  • Switch the home breaker off for 30 seconds, then on, and retest
  • To mute for 24 hours, press ALARM and POWER together and release within 5 seconds

Call a technician if: Wrench returns after the reset; muting the chime does not fix the fault

Source: [6], [7], [8], [9], [10]

Wrench icon steady + chimeMinor fault logged; food temperatures not at risk

Check, then call if it returns

Applies to: Legacy Classic Series (BI)

Common causes

  • Minor control or component fault

What you can safely check

  • Switch the home breaker off for 30 seconds, then on, and retest
  • Keep an eye on temperatures and operation for a day
  • Mute the chime for 24 hours with the ALARM + POWER press if needed

Call a technician if: Wrench and chime come back after the breaker reset

Source: [7], [10], [11]

Vacuum CondenserUnit running inefficiently or temperatures too high

Check, then call if it returns

Applies to: 600 Series with serial numbers below 1810000

Common causes

  • Dirty condenser
  • Door not sealing
  • Cooling system problem

What you can safely check

  • Check temperatures; if the fridge is above 45°F, book service
  • If close to normal, turn the unit off and clean the condenser per the guide
  • Make sure nothing blocks the door from closing
  • Turn the unit back on to clear the message

Call a technician if: Message keeps coming back or the unit can't hold its set temperature

Source: [12]

SERVICE + ICE (flashing)Ice maker water valve stayed open too long; ice maker shut off

Check, then call if it returns

Also shown as or same meaning as: Service and Ice flashing

Applies to: 600 Series, 648PRO and earlier 600-series built-ins

Common causes

  • Ice maker fill valve ran longer than allowed
  • Control stops the ice maker to prevent a leak

What you can safely check

  • Look for water near the ice maker or on the freezer floor
  • If you find water, close the ice maker water supply valve and book service
  • If dry, turn the unit off at the control panel for 10 seconds, then on

Call a technician if: It recurs soon after the reset, or any water is leaking

Source: [2], [13], [14]

EC30Ice maker shut off after too much water valve activation

Needs a technician

Also shown as or same meaning as: EC 30

Applies to: 600 and 700 Series

Common causes

  • Ice maker water valve running too often or too long

What you can safely check

  • Turn the ice maker off to avoid further problems
  • Note the code and current temperatures for the technician

Call a technician if: Always; Sub-Zero lists no owner fix for EC30

Source: [15]

EC40Freezer compressor running excessively

Check, then call if it returns

Also shown as or same meaning as: EC 40, 40

Applies to: 600, 700, IC-27 and 648PRO (648PRO: excessive run in the zone shown)

Common causes

  • Door left ajar
  • Dirty condenser
  • Sealed system, fan or sensor fault
  • Kickplate vent covered by cabinetry

What you can safely check

  • Compare reading to setpoint; over 10° above with the door shut, book service
  • If temperatures are near normal, clean the condenser as your use & care guide shows
  • Clear the code by holding the door-alarm (bell) key for 15 seconds
  • On integrated models, make sure custom toe-kick panels don't cover the kickplate

Call a technician if: Code returns or temperatures keep rising; don't clear it then, service needs the log

Source: [16], [17], [18], [19]

EC50Refrigerator compressor running excessively

Check, then call if it returns

Also shown as or same meaning as: EC 50, 50

Applies to: 600, 700, IC-27 and 648PRO; Sub-Zero also references it for some Designer models

Common causes

  • Dirty condenser
  • Door not sealing
  • Kickplate vent covered by cabinetry
  • Cooling system fault

What you can safely check

  • If temperatures are high, book service and leave the code uncleared
  • If temperatures are near normal, clean the condenser as your use & care guide shows
  • Hold the door-alarm (bell) key for 15 seconds to clear the code
  • Check that cabinetry doesn't fully cover the kickplate

Call a technician if: Code comes back or temperatures rise after clearing

Source: [20]

EC21Defrost overheat

Check, then call if it returns

Also shown as or same meaning as: 21, E21, EC 21

Applies to: 600 Series

Common causes

  • Defrost system running too hot

What you can safely check

  • If temperatures are high, book service
  • If temperatures are near normal, clean the condenser as your use & care guide shows
  • Serial 1810000 and later: hold the door-alarm key 15 seconds to clear
  • Older units: turn the unit off, then back on

Call a technician if: The code, SERVICE light or rising temperatures come back

Source: [21]

EC24Defrost underheat (defrost not warming enough)

Check, then call if it returns

Also shown as or same meaning as: 24, EC 24

Applies to: 600 and 700 Series

Common causes

  • Defrost system not reaching temperature

What you can safely check

  • If temperatures are high, book service
  • If temperatures are near normal, clean the condenser as your use & care guide shows
  • Hold the door-alarm (bell) key for 15 seconds to clear the code

Call a technician if: The code, SERVICE light or rising temperatures come back

Source: [22], [23]

EC20Freezer defrost terminator (bimetal) fault

Needs a technician

Also shown as or same meaning as: 20, EC 20

Applies to: 600 Series; 648PRO shows 20

Common causes

  • Defrost terminator not operating correctly

What you can safely check

  • 648PRO only: switch the home breaker off 30 seconds, then on, and retest
  • Note the code and current temperatures for service

Call a technician if: Code persists; the 600 Series has no owner fix

Source: [24], [25]

EC05 / EC06Refrigerator temperature sensor erratic, open or shorted

Needs a technician

Also shown as or same meaning as: EC 05, EC 06, 05, 06

Applies to: 600 and 700 Series

Common causes

  • Refrigerator or evaporator thermistor fault

What you can safely check

  • Keep doors closed to hold temperature until service
  • Note the code and current temperatures when booking

Call a technician if: Always; Sub-Zero offers no owner troubleshooting

Source: [26]

EC07 / EC08Freezer temperature sensor erratic, open or shorted

Needs a technician

Also shown as or same meaning as: EC 07, EC 08, 07, 08

Applies to: 600 and 700 Series

Common causes

  • Freezer or freezer evaporator thermistor fault

What you can safely check

  • Keep doors closed to hold temperature until service
  • Note the code and current temperatures when booking

Call a technician if: Always; Sub-Zero offers no owner troubleshooting

Source: [27]

EETemperature sensor failed (left side freezer, right side refrigerator)

Needs a technician

Applies to: Legacy Classic (BI) with flashing wrench; 648PRO with SERVICE flashing

Common causes

  • Faulty compartment thermistor

What you can safely check

  • Note which side of the display shows EE
  • Keep doors closed and monitor food temperatures

Call a technician if: Always; there is no owner fix for EE

Source: [1], [28], [29]

Door alarm (bell icon flashing)A door or drawer has been open too long

Usually a quick fix

Also shown as or same meaning as: Door ajar chime, Bell icon

Applies to: Delay about 30–60 s (600/700), 30 s (2013 integrated), 60 s (Legacy Classic, 648PRO), adjustable 5–90 s (Designer, PRO3650/4850)

Common causes

  • Door left open
  • Tall items or a door shelf blocking closure
  • Damaged door gasket

What you can safely check

  • Close the door or drawer fully
  • Remove anything, like a tall bottle on a door shelf, keeping it from closing
  • Check the gasket for rips or tears
  • If interior lights shut off after the door was open, keep it closed an hour
  • Turn the alarm off with the bell/Alarm key to confirm it's the source

Call a technician if: Alarm sounds with the door shut and nothing blocking it

Source: [3], [8], [30], [31], [32], [33], [34]

Water filter indicatorWater filter life used up; replace the filter

Usually a quick fix

Also shown as or same meaning as: Change Water Filter, Snooze / Refresh, Water drop icon

Applies to: Icon on Legacy Classic (BI); text message on Designer, PRO and current Classic (CL)

Common causes

  • Filter timer reached about 12 months or its rated gallons

What you can safely check

  • Install a new Sub-Zero filter as your use & care guide shows
  • Legacy Classic: hold the filter reset button beside the filter for 5 seconds
  • Touch-screen models: tap Refresh or Reset Filter; Snooze only postpones the reminder

Call a technician if: Indicator won't clear after a new filter and a reset

Source: [8], [9], [35], [36], [37], [38], [39]

Air purifier indicatorAir purification cartridge due for replacement (about yearly)

Usually a quick fix

Also shown as or same meaning as: Change Air Purifier, Change Air Filter, Pure Air icon flashing

Applies to: Models with air purification (Legacy Classic, Classic CL, PRO, Designer)

Common causes

  • Cartridge reached about 365 days of use

What you can safely check

  • Replace the air purification cartridge
  • Legacy Classic: hold PURE AIR for 5 seconds to reset
  • Touch-screen models: tap Refresh to set cartridge life back to 100%

Call a technician if: Indicator stays on after a new cartridge and a reset

Source: [8], [37], [38], [39], [40]

H2 LOWater dispenser locked after long or heavy dispensing

Usually a quick fix

Applies to: Legacy Classic (BI) dispenser models (e.g. BI-42SD, BI-48SD, BI-36UFDID, BI-48SID)

Common causes

  • About a gallon dispensed within 15 minutes
  • Dispenser key held or stuck

What you can safely check

  • Make sure nothing is pressing the dispenser key or paddle
  • External dispenser: hold the dispenser Light key 5 seconds to unlock
  • Internal dispenser: press the Water key firmly 5 times within 20 seconds
  • Or wait about 45 minutes for it to unlock on its own

Call a technician if: Dispenser stays locked after the unlock steps

Source: [41]

L0 CControl got a command while sensing the door closed

Check, then call if it returns

Also shown as or same meaning as: LOC, LO C, L0C

Applies to: Legacy Classic (BI); often seen right after installation

Common causes

  • Door light switch stuck pressed in
  • Door left open a long time

What you can safely check

  • Check that the door light switch isn't stuck in the pressed position
  • Close the door and leave it shut 45 minutes to reset the control

Call a technician if: L0 C remains after the 45-minute reset

Source: [42]

ShowroomDemo mode: lights and display work, cooling is off

Usually a quick fix

Also shown as or same meaning as: Shows 38° and 0° but not cooling

Applies to: Word 'Showroom' appears on Designer (DET/DEC/IT/IC/ID); other series just read 38°/0°

Common causes

  • Unit left in dealer demo mode

What you can safely check

  • Confirm the cabinet is actually warm despite normal-looking readings
  • Call Sub-Zero Customer Care (800-222-7820) to get out of showroom mode

Call a technician if: Unit won't leave showroom mode or still doesn't cool

Source: [3], [8], [37], [43]

SAbSabbath mode on; lights, ice maker and door alarm disabled

Usually a quick fix

Applies to: Legacy Classic (BI) display; other series show Sabbath in the menu

Common causes

  • POWER key held for 10 seconds

What you can safely check

  • Touch POWER once to return to normal operation
  • Current Classic and PRO models end Sabbath automatically after 74 hours

Call a technician if: SAb won't clear with the POWER key

Source: [8], [37], [38]

40 1 40Excessive run time in one section or zone

Check, then call if it returns

Also shown as or same meaning as: 40 2 40, 40 3 40

Applies to: Legacy Classic (BI): 1 = refrigerator, 2 = freezer. Legacy Designer (IT/IC/ID/IW): middle digit = zone

Common causes

  • Dirty condenser
  • Door not sealing
  • Cooling system fault

What you can safely check

  • Switch the home breaker off for 30 seconds, then on, and retest
  • Check the condenser is clean and doors seal, per the use & care guide

Call a technician if: Code returns after the reset or temperatures climb

Source: [44], [45], [46], [47]

15 1 01Compressor relay stuck closed (1 = refrigerator, 2 = freezer)

Needs a technician

Also shown as or same meaning as: 15 2 01, 15-1-01, 15101

Applies to: Legacy Classic (BI); usually with beeping and a flashing wrench

Common causes

  • Relay fault
  • Electrical interference

What you can safely check

  • Check whether both sections are still holding temperature
  • Contact Sub-Zero; a remote software update may clear it on connected units

Call a technician if: Code or alarm persists, or temperatures drift

Source: [10], [48], [49]

10 F 00Evaporator temperature sensor open, shorted or unstable

Check, then call if it returns

Also shown as or same meaning as: 10 R 02, 10 1 11

Applies to: Legacy Classic (BI): F = freezer, R = refrigerator. Legacy Designer: middle digit = zone

Common causes

  • Evaporator thermistor fault

What you can safely check

  • Switch the home breaker off for 30 seconds, then on, and retest

Call a technician if: Code comes back after the reset

Source: [50], [51], [52]

Still showing the code?

When to call a technician

If a code comes back after the safe checks, or the table says it needs a technician, the fault is usually a sensor, valve, pump, motor or control board, and diagnosing it means opening the refrigerator. Our technicians repair Sub-Zero appliances across Washington, DC, Northern Virginia and Maryland, seven days a week until 10 PM. Tell us the code when you book and we bring the parts that code usually points to.

Book Sub-Zero refrigerator repair $75 diagnostic, credited toward the repair.

Sources

Where these meanings come from

Every code on this page was checked against Sub-Zero's own documentation: owner's manuals, use and care guides, support articles or Sub-Zero technical sheets. Codes we could only find on third-party sites are left out. Meanings are paraphrased; your model's manual is the final word.

  1. Sub-Zero with Service Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  2. Built-In Refrigeration Use & Care Information (600 Series, 3758680, 9/2005) — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  3. Integrated Refrigeration Use & Care Guide (700 Series / IC-27, 7028627 REV-A, 5/2013) — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  4. 600 or 700 Series Service Indicator Steady — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  5. Legacy Classic Service Icon Steady, No Alarm Chiming — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  6. Legacy Classic Series Service Icon Flashing and Alarm Chiming — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  7. Legacy Classic Built-In Series Alarm Silencing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  8. Classic Refrigeration Use and Care Guide (Legacy Classic BI) — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  9. Legacy Classic Series Control Panel Icons and Buttons — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  10. Legacy Classic Built-In Series Beeping or Chiming — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  11. Legacy Classic Series Wrench Icon Steady and Alarm Chiming — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  12. Sub-Zero with "Vacuum Condenser" or "Service" Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  13. 600 Series Service and Service Ice Icons Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  14. 648PRO With Service and Ice Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  15. 600 or 700 Series EC30 and Service Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  16. 600, 648PRO, 700 Series Error Code EC40 and Service Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  17. 648PRO Displays Error Code 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  18. 600 Series Error Code 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  19. 700 Series Error Code 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  20. Error Code EC50 and Service Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  21. 600 Series Error Code 21 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  22. 600 Series Error Code 24 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  23. 700 Series Error Code 24 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  24. 600 Series Error Code 20 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  25. 648PRO Error Code 20 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  26. 600 or 700 Series Error Code EC05 or EC06 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  27. 600 or 700 Series Error Code EC07 or EC08 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  28. Legacy Classic EE and Service Wrench Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  29. 648PRO EE and Service Flashing — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  30. 600 and 700 Series Door Ajar Alarm — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  31. 648PRO Professional Refrigeration Door Ajar Alarm — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  32. Designer Series (IT, IC, ID, IW) Door or Drawer Ajar Alarm — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  33. PRO3650 and PRO4850 Door and Drawer Ajar Alarm — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  34. Sub-Zero Beeping — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  35. Legacy Classic Water Filter Indicator On — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  36. Designer Series (IT, IC, ID) Reset Water Filter — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  37. PRO Series Refrigeration Use and Care Guide (PRO3650/PRO4850) — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  38. Classic Series Refrigeration Use and Care Guide (current CL) — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  39. Designer Series Refrigeration Use and Care Guide (IT/IC/ID) — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  40. Air Filter Cartridge Life — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  41. Legacy Classic (BI) Error Code H2 LO — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  42. Legacy Classic Built-In Error Code L0 C — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  43. Designer (DET, DEC) and Legacy Designer (IT, IC, ID) Showroom Mode — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  44. Legacy Classic Error Code 40 1 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  45. Legacy Classic Error Code 40 2 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  46. Legacy Designer Error Code 40 1 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  47. Legacy Designer Error Code 40 3 40 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  48. Legacy Classic Error Code 15 1 01 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  49. Legacy Classic Error Code 15 2 01 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  50. Legacy Classic Error Code 10 F 00 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  51. Legacy Classic Error Code 10 R 02 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  52. Legacy Designer Error Code 10 1 11 — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  53. Appliance Error Codes in the Sub-Zero Group Owner's App — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  54. Sub-Zero Group Owner's App Refrigeration Notifications — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com
  55. Designer Series Control Panel Symbols and Buttons — Sub-Zero Group (subzero-wolf.com). www.subzero-wolf.com

Sub-Zero is a trademark of its owner. Appliance Surgeon is an independent repair company and is not affiliated with Sub-Zero.