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Model reference

Sub Zero 600

Refrigerator

7 documents90 error codes29 service modes

Available documentation

Service Manual

  • 600 Series Service Manual9 pg
    Covers this model
  • Norcold Repair Guide41 pg
    Covers this model
  • 600 Series Electronic Control System27 pg
    Covers this model
  • Computron 7000 Service Manual - Model 500 and 600 Pressure Fryer51 pg
    Covers this model
  • Prodigy Eclipse 600, 800, 100050 pg
    Covers this model
  • Eclipse 600, 800, 100050 pg
    Covers this model

Quick Reference

  • Condensed Electronic Control Information Booklet126 pg
    Covers this model
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Error codes (90)

View all 90 error codes
42Door closed sensing error.5Mode Shifter51Drum motor relay error.52Drum motor start sensing error.53Drum motor centrifugal switch error.54Drum motor sensing error.6Critical Flood Level by pressure61Heater relay error.63Heater short error.64Heater open error.65Thermostat open.67Thermal/Heater sensing error (Only for Dual Coil).7Max Fill71NTC1 (OPEN) error.72NTC1 (SHORTED) error.73NTC2 (OPEN) error.74NTC2 (SHORTED) error.8Pressure Sensor Loss9Lid Switch Redundancy91User Interface communication problem with main board.92User Interface mother board protocol mismatch.93MCF checksum error.94CCF checksum error.97Missing program on CTF error.9CUser Interface configuration checksum error.9EUser Interface touch sensor not working.CHECKRed X displayed on Eyebrow panel indicating a trial for ignition has failed and…EMemory lostE 1Temperature probe has failed.E 4High limit has tripped; also flashes red HI LIMIT light.E 5Pot temperature is too high.EC 05Refrigerator cabinet thermistor read open or shorted for 10+ seconds, or…EC 06Refrigerator evaporator thermistor read open or shorted for 10+ seconds, or…EC 07Freezer cabinet thermistor read open or shorted for 10+ seconds, or repeatedly…EC 08Freezer evaporator thermistor read open or shorted for 10+ seconds, or…EC 20Defrost under-heat with no voltage feedback through gray/white wire at defrost…EC 21Defrost overheat.EC 22No voltage feedback through gray/white wire at defrost start.EC 23Defrost overheat with no voltage feedback through gray/white wire at defrost…EC 24Defrost under-heat.EEThermistor is open or shorted, or there is a break in the thermistor's wiring…F1Ventilation blocked error.F3No Gas Error.F6Safety reset error.H1/B1Power supply frequency out of range.H2/B2Power supply amplitude out of range (too HIGH).H3/B3Power supply amplitude out of range (too LOW).H4/B4Line wiring error.HA/BDLine safe relay short circuit error.HE/BELine safe error.HF/BFLine safe sensing error.LBoard lockedR-ONMaximum freeze time exceeded (refrigeration diagnostic light ON steady, not…R1Very long ice harvestR2No harvest of iceR3High discharge temperature detected by controller.W-ONWater valve leaking through rapidly (water diagnostic light ON steady, not…W+RBoth water and refrigeration diagnostic lights ON steady at the same timeW1Water pump will not start during operation.W2Lack of water fill

Service modes (29)

  • Boil Out Mode["Place keyswitch in the COOK position.","Depress the SELECT PRODUCT switch and select either IDLE…
  • Clean Cycle1
  • Clear Diagnostic CodesHold Clean and Harvest buttons simultaneously for 3 seconds.
  • Consumer Error Mode (CEM)From an idle state only (all LEDs off), press and hold Start button for 10 seconds
  • De-Scale Notification Interval Change1. Machine must be in standby (Status Light Off). 2. Hold Off button for 3 seconds, then release…
  • Demo Mode["1. Press power and look for console to light up.","2. For Rotary Dial
  • Diagnostic Mode["1
  • Empty ReservoirHold Clean button for 3 seconds, then release.
  • Factory Default Reset["1
  • Field Service ModePress and hold Start button while rotating the cycle selection knob 180 degrees (7 clicks) and then…
  • Last Error Recall1
  • Lock / Unlock ControlHold On button for 3 seconds, keep holding, then press and release Off twice.
  • Manual Compartment Disable ModeSwitch the unit OFF using the UNIT ON/OFF key
  • Manual Component Activation ModeWith the unit ON, press and hold the desired compartment COLDER key and the UNIT ON/OFF key for 10…
  • Manual Freezer Evaporator DefrostPress and hold the ICE key for 5 seconds, then release.
  • Program ID Display["1
  • Program Mode["Move the keyswitch to the PROGRAM position."]
  • Purge Adjustment Mode["1
  • Purge Level Setting1. Machine must be in standby (Status Light Off). 2. Hold Off button for 3 seconds, then release…
  • Recall Last Error Code["1
  • Reset ControlPress and release Off, then press and release On.
  • Review Usage Mode["Place keyswitch in PROGRAM position.","Push REVIEW USAGE switch.","Push SELECT PRODUCT to see the…
  • Sabbath ModeSwitch the unit OFF using the UNIT ON/OFF key
  • Showroom ModeSwitch the unit OFF using the UNIT ON/OFF key
  • Special Program Mode (One Button Programming)["Turn the COOK/PROGRAM keyswitch to the PROGRAM position.","Depress the TIMER switch. Display will…
  • Temperature Log Recall Mode (Compartment and Evaporator)With the unit ON and in Diagnostic Mode, toggle to the desired thermistor temperature reading
  • Temperature Log Recall Mode (Compartment Only)With the unit ON, press and hold the desired compartment WARMER key, then press the UNIT ON/OFF…
  • Temperature Units Selection ModeWithin the first minute after switching the unit ON, press and hold the Door Ajar Alarm Bell key…
  • Test Mode (Output Test)1

Full entry steps, exit procedures, and test sequences are available in Max.

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