Sub-Zero 400 Series Information Booklet
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Sub-Zero 400 Series Information Booklet

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See also: Use and Care Manual
400 / 400-2 / 600 / 600-2 / 700 /
700-2 / 700-3 SERIES, MODEL
648PRO, ICB648PRO and
UC SERIES
CONDENSED
ELECTRONIC CONTROL
INFORMATION BOOKLET
NOTE:
If more detailed information on the
electronic controls is needed, the appropriate
Service Manual must be referenced.
Part #3756590 - Rev. G - April, 2007

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Summary of Contents for Sub-Zero 400 Series

  • Page 1 400 / 400-2 / 600 / 600-2 / 700 / 700-2 / 700-3 SERIES, MODEL 648PRO, ICB648PRO and UC SERIES CONDENSED ELECTRONIC CONTROL INFORMATION BOOKLET NOTE: If more detailed information on the electronic controls is needed, the appropriate Service Manual must be referenced. Part #3756590 - Rev.

  • Page 2: Table Of Contents

    Diagnostic Mode - Valve Activation Mode - Service Input Operations ....33 Temp. Log Recall Mode (Event Indicators) Auto and Manual Entry Model 400 Series (Model 427R Ref) ....12 Configuration Mode (Model Code Table) Basic Input Operations ...... 12 600 Series (PTS #1810000) ....36 Power ON/OFF - Adjust Set-Points - Basic Input Operations ......
  • Page 3 PAGE PAGE 600-2 Series ........... 52 700-3 Series Tall Units ......77 Basic Input Operations ..... 52 Basic Input Operations ..... 77 Power ON/OFF - Adjust Set-Points - IM Power ON/OFF - Adjust Set-Points - IM ON/OFF - Door Ajar Alarm ON/OFF ON/OFF - Door Ajar Alarm ON/OFF Unique Input Operations ....
  • Page 4 PAGE PAGE 700-3 Series Base Units ....... 93 Undercounter Series ......113 Basic Input Operations ..... 93 Basic Input Operations ....113 Power ON/OFF - Adjust Set-Points - IM Power ON/OFF - Adjust Set-Points ON/OFF - Door Ajar Alarm ON/OFF Unique Input Operations ..

  • Page 5: Unique Input Operations

    400 SERIES WINE STORAGE Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired compartment NOTE: Actual compartment temp. is displayed 10 seconds after last keystroke. » Lighting System ON/OFF Press LIGHTS ON/OFF key »...

  • Page 6: Error Indicators

    400 SERIES WINE STORAGE Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) 5 5 5 5 E E E E Upper compartment thermistor fault BELL ON (Flashing) SERVICE (Flashing) 5 5 5 5...

  • Page 7: Troubleshooting Input Operations

    400 SERIES WINE STORAGE Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press either COLDER key & the UNIT ON/OFF key simultaneously NOTE: After performing the above key strokes, the following will appear on the display. Temperatures shown are for ref- erence only, actual temperatures may vary.
  • Page 8 400 SERIES WINE STORAGE » Valve Activation Mode (opens valve for 5 min.) Unit must be ON Press and hold desired compartment COLDER key and the UNIT ON/OFF key for 30 seconds If lower compartment COLDER key is chosen for above key strokes, the following will appear on the display.
  • Page 9 400 SERIES WINE STORAGE » Temperature Log Recall Mode Unit must be ON Press and hold desired compartment WARMER key and the UNIT ON/OFF, then release both keys NOTE: After performing the above key strokes, the fol- lowing will appear on the display. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 10 400 SERIES WINE STORAGE Possible Event Indicators During Temperature Log Recall BELL ON (Illuminated) 6 6 6 6 BELL ON Illuminated indicates power failure/interruption. SERVICE (Illuminated) 6 6 8 8 2 2 9 9 SERVICE illuminated indicates unit was switched off with...
  • Page 11 400 SERIES WINE STORAGE NOTES PAGE 11...

  • Page 12: Basic Input Operations

    400 SERIES, MODEL 427R REFRIGERATOR Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER key NOTE: Actual compartment temp. is displayed 10 seconds after last keystroke. » Drawer Ajar Alarm ON/OFF...

  • Page 13: Error Indicators

    400 SERIES, MODEL 427R REFRIGERATOR Possible Error Indicators NOTE: Temperature shown is for reference only, actual tem- perature may vary. TOP DRAWER (Flashing) LOWER DRAWER (Flashing) E E E E Refrigerator compartment thermistor fault TOP DRAWER (Flashing) LOWER DRAWER (Flashing) 4 4 0 0 Refrigerator evaporator thermistor fault.

  • Page 14: Troubleshooting Input Operations

    400 SERIES, MODEL 427R REFRIGERATOR Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for refer- ence only, actual temperatures may vary.
  • Page 15 400 SERIES, MDL 427R REFRIG NOTES PAGE 15...

  • Page 16: Basic Input Operations

    400-2 SERIES WINE STORAGE Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired compartment NOTE: Actual compartment temp. is displayed 10 seconds after last keystroke. » Lighting System ON/OFF Press LIGHTS ON/OFF key »...

  • Page 17: Error Indicators

    400-2 SERIES WINE STORAGE Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) 5 5 5 5 E E E E Upper compartment thermistor fault BELL ON (Flashing) SERVICE (Flashing) 5 5 5 5 E E E E Upper compartment thermistor fault with temperature alarm SERVICE (Flashing)

  • Page 18: Troubleshooting Input Operations

    400-2 SERIES WINE STORAGE Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the display. Temperatures shown are for refer- ence only, actual temperatures may vary.
  • Page 19 400-2 SERIES WINE STORAGE (CONTINUED) NOTE: If “E E C C ” (Error Code) is displayed, see Error Code Table on next page. NOTE: If “E E E E ” is displayed in place of temperature, thermistor in that location is faulty. NOTE: Diagnostic Mode will end 10 seconds after last key stroke.
  • Page 20 400-2 SERIES WINE STORAGE ERROR CODE TABLE CODE INDICATION Upper Cabinet Thermistor read open / short for 10+ seconds, or repeatedly erratic temp’s. Upper Evap. Thermistor read open / short for 10+ seconds, or repeatedly erratic temp’s. Lower Cabinet Thermistor read open / short for 10+ seconds, or repeatedly erratic temp’s.
  • Page 21 400-2 SERIES WINE STORAGE » Clearing Error Codes Unit must be ON and problem repaired Press and hold Bell ON/OFF key for 15 seconds » Manual Valve Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press desired COLDER & UNIT ON/OFF keys simul- taneously for 10 seconds NOTE: After performing the above key strokes (depend- ing on COLDER key chosen), the following will appear on...
  • Page 22 400-2 SERIES WINE STORAGE » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & UNIT ON/OFF keys simultane- ously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the display. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 23 400-2 SERIES WINE STORAGE Possible Event Indicators During Temperature Log Recall BELL ON (Illuminated) 6 6 6 6 BELL ON Illuminated indicates power failure/interruption. SERVICE (Illuminated) 6 6 8 8 2 2 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key - - - - - - - -...
  • Page 24 400-2 SERIES WINE STORAGE NOTES PAGE 24...

  • Page 25: Basic Input Operations

    400-2 SERIES - 427R-2 REFRIGERATOR Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER key NOTE: Actual compartment temp. is displayed 10 seconds after last keystroke. » Drawer Ajar Alarm ON/OFF Press Alarm ON/OFF key Unique Input Operations »...

  • Page 26: Error Indicators

    400-2 SERIES - 427R-2 REFRIGERATOR Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E Refrigerator compartment thermistor fault SERVICE (Flashing) 3 3 8 8 Several excessive compressor run periods OR Refrigerator evaporator thermistor fault SERVICE (Steady, not Flashing) 3 3 8 8...

  • Page 27: Troubleshooting Input Operations

    400-2 SERIES - 427R-2 REFRIGERATOR Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 28 400-2 SERIES - 427R-2 REFRIGERATOR (CONTINUED) NOTE: If “E E C C ” (Error Code) is displayed, see Error Code Table below. NOTE: If “E E E E ” is displayed in place of temperature, thermistor in that location is faulty. NOTE: If “S S r”...
  • Page 29 400-2 SERIES - 427R-2 REFRIGERATOR » Clearing Error Codes Unit must be ON Repair problem Press and hold Bell ON/OFF key for 15 seconds » Manual Component Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously for 10 seconds NOTE: After performing the above key strokes, the following will appear on the LCD.
  • Page 30 400-2 SERIES - 427R-2 REFRIGERATOR » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press WARMER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 31 400-2 SERIES - 427R-2 REFRIGERATOR » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press COLDER key & UNIT ON/OFF keys simultaneously, then release. Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and UNIT ON/OFF simultaneously...
  • Page 32 400-2 SERIES - 427R-2 REFRIGERATOR Possible Event Indicators During Temperature Log Recall 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key Bell (Illuminated) 3 3 8 8...

  • Page 33: Service Input Operations

    400-2 SERIES - 427R-2 REFRIGERATOR Service Input Operations » Auto Model Configuration Mode If a new main control board is installed during a service call, double dashes ( - - ) will appear on the LCD indicating the board must be configured for the model it was installed into. Open bottom drawer.
  • Page 34 400-2 SERIES - 427R-2 REFRIGERATOR MODEL CODE TABLE CODE MODEL 700BR 700BC 427R 700BFI UC-24R / UC-24RO UC-24C UC-24B PAGE 34...
  • Page 35 400-2 SERIES NOTES PAGE 35...

  • Page 36: Basic Input Operations

    600 SERIES (Prior To Serial #1810000) Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired compart- ment NOTE: Actual compartment temp. is displayed 10 seconds after last keystroke. »...

  • Page 37: Error Indicators

    600 SERIES (Prior To Serial #1810000) Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor Fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing)

  • Page 38: Troubleshooting Input Operations

    600 SERIES (Prior To Serial #1810000) Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 39 600 SERIES (Prior To Serial #1810000) (CONTINUED) SERVICE (Illuminated) - - 1 1 0 0 Press COLDER key. Fourth reading is freezer evaporator temperature. SERVICE (Illuminated) F F E E Press UNIT ON/OFF key to display location code. (F F = Freezer Compartment) SERVICE (Illuminated) 0 0 0 0 Press COLDER key.
  • Page 40 600 SERIES (PTS #1810000) NOTES PAGE 40...
  • Page 41 600 SERIES (Starting With Serial #1810000) Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. »...
  • Page 42 600 SERIES (Starting With Serial #1810000) Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press Bell ON/OFF key & UNIT ON/OFF key simultaneously for 5 seconds » Sabbath Mode (Disables lighting) Switch unit OFF Press &...
  • Page 43 600 SERIES (Starting With Serial #1810000) Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing)
  • Page 44 600 SERIES (Starting With Serial #1810000) Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 45 600 SERIES (Starting With Serial #1810000) (CONTINUED) NOTE: If “E E C C ” (Error Code) is displayed, see Error Code Table on next page. NOTE: If “E E E E ” is displayed in place of temperature, thermistor in that location is faulty. NOTE: If “S S r”...
  • Page 46 600 SERIES (Starting With Serial #1810000) Error Code Table CODE INDICATION Refrig. Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s Refrig. Evaporator Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s Freezer Cabinet Thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s Freezer Evaporator Thermistor read open or shorted...
  • Page 47 600 SERIES (Starting With Serial #1810000) » Clearing Error Codes Unit must be ON Repair problem Press and hold Bell ON/OFF key for 15 seconds » Manual Component Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press desired COLDER &...
  • Page 48 600 SERIES (Starting With Serial #1810000) » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & UNIT ON/OFF keys simultane- ously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD.
  • Page 49 600 SERIES (Starting With Serial #1810000) » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press either COLD- ER key & UNIT ON/OFF keys simultaneously, then release. Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and UNIT...
  • Page 50 600 SERIES (Starting With Serial #1810000) Possible Event Indicators During Temperature Log Recall 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key Bell (Illuminated) 3 3 8 8...
  • Page 51 600 SERIES (SWS #1810000) NOTES PAGE 51...
  • Page 52 600-2 SERIES Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. » Icemaker ON/OFF Press ICE ON/OFF key »...
  • Page 53 600-2 SERIES Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press Bell ON/OFF key & UNIT ON/OFF key simultaneously for 5 seconds » Sabbath Mode (Disables lighting) Switch unit OFF Press &...
  • Page 54 600-2 SERIES Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing) 0 0 0 0...

  • Page 55: Diagnostic Mode

    600-2 SERIES Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 56 600-2 SERIES (CONTINUED) NOTE: If “ E E C C ” (Error Code) is displayed, see Error Code Table below. NOTE: If “ E E E E ” is displayed in place of temperature, ther- mistor in that location is faulty. NOTE: If “...
  • Page 57 600-2 SERIES Error Code Table CODE INDICATION Ref. cabinet therm. read open, short or erratic temp for 10+ sec’s Ref. evap. therm. read open, short or erratic temp for 10+ sec’s Fre. cabinet therm. read open, short or erratic temp for 10+ sec’s Fre.
  • Page 58 600-2 SERIES » Clearing Error Codes Unit must be ON Repair problem Press and hold Bell ON/OFF key for 15 seconds » Manual Component Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press desired COLDER & UNIT ON/OFF keys simultane- ously for 10 seconds NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD.
  • Page 59 600-2 SERIES » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & UNIT ON/OFF keys simultane- ously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 60 600-2 SERIES » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press either COLD- ER key & UNIT ON/OFF keys simultaneously, then release Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and UNIT ON/OFF simultaneously...
  • Page 61 600-2 SERIES Possible Event Indicators During Temperature Log Recall b1 1 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key Bell (Illuminated) 3 3 8 8...
  • Page 62 600-2 SERIES NOTES PAGE 62...

  • Page 63: Basic Input Operations

    700 SERIES Basic Input Operations » Adjusting Set-Point (Temperature Adjust) Initiate Temperature Set Mode by pressing Zone key in multiple keystrokes until desired zone/compart- ment is reached Press COLDER or WARMER keys to set tempera- ture NOTE: Temperature set mode will remain active for five seconds after the last keystroke.

  • Page 64: Error Indicators

    700 SERIES Possible Error Indicators “- -” = Control is shut off. Press COLDER key to start unit. - 2 2 0 0 “- 2 2 0 0 ” = Zone/Compartment thermistor fault. Repair wiring or replace thermistor. 5 5 5 5 “5 5 5 5 ”...
  • Page 65 700 SERIES NOTES PAGE 65...
  • Page 66 700-2 SERIES (Tall Units) Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. »...

  • Page 67: Unique Input Operations

    700-2 SERIES (Tall Units) Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press Bell ON/OFF key & UNIT ON/OFF key simultaneously for 5 seconds » Sabbath Mode (Disables lighting) Switch unit OFF Press &...

  • Page 68: Error Indicators

    700-2 SERIES (Tall Units) Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor Fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing) 0 0 0 0...

  • Page 69: Troubleshooting Input Operations

    700-2 SERIES (Tall Units) Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 70 700-2 SERIES (Tall Units) (CONTINUED) NOTE: If “E E C C ” (Error Code) is displayed (after serial #1759163), see Error Code Table on next page. NOTE: If “E E E E ” is displayed in place of temperature, thermistor in that location is faulty. NOTE: If “S S r”...
  • Page 71 700-2 SERIES (Tall Units) Starting W/ Serial #1759163 Error Code Table CODE INDICATION Ref. cabinet therm. read open, short or erratic temp for 10+ sec’s Ref. evap. therm. read open, short or erratic temp for 10+ sec’s Fre. cabinet therm. read open, short or erratic temp for 10+ sec’s Fre.
  • Page 72 700-2 SERIES (Tall Units) Starting W/ Serial #1759163 NOTE: The table on the preceding page will be updated through addendums when subsequent software and electrical changes occur and more error codes are added. Error Codes 80 - 88 apply to the 700TF/I-2V only, which started at serial ##1898164.
  • Page 73 700-2 SERIES (Tall Units) » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & UNIT ON/OFF keys simultane- ously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 74 700-2 SERIES (Tall Units) Starting W/ Serial #1759163 » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press either COLD- ER key & UNIT ON/OFF keys simultaneously, then release Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and UNIT...
  • Page 75 700-2 SERIES (Tall Units) Possible Event Indicators During Temperature Log Recall b1 1 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key Bell (Illuminated) 3 3 8 8...
  • Page 76 700-2 SERIES (Tall Units) NOTES PAGE 76...

  • Page 77: Basic Input Operations

    700-3 SERIES - TALL UNITS Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. »...

  • Page 78: Unique Input Operations

    700-3 SERIES - TALL UNITS Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press Bell ON/OFF key & UNIT ON/OFF key simultaneously for 5 seconds » Sabbath Mode (Disables lighting) Switch unit OFF Press &...
  • Page 79 700-3 SERIES - TALL UNITS Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing)

  • Page 80: Troubleshooting Input Operations

    700-3 SERIES - TALL UNITS Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 81 700-3 SERIES - TALL UNITS (CONTINUED) NOTE: If “ E E C C ” (Error Code) is displayed, see Error Code Table on next page. NOTE: If “ E E E E ” is displayed in place of temperature, ther- mistor in that location is faulty.
  • Page 82 700-3 SERIES - TALL UNITS Error Code Table CODE INDICATION Ref. cabinet therm. read open, short or erratic temp for 10+ sec’s Ref. evap. therm. read open, short or erratic temp for 10+ sec’s Fre. cabinet therm. read open, short or erratic temp for 10+ sec’s Fre.
  • Page 83 700-3 SERIES - TALL UNITS » Clearing Error Codes Unit must be ON Repair problem Press and hold Bell ON/OFF key for 15 seconds » Manual Component Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press desired COLDER & UNIT ON/OFF keys simultane- ously for 10 seconds NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD.
  • Page 84 700-3 SERIES - TALL UNITS » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & UNIT ON/OFF keys simultane- ously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD.
  • Page 85 700-3 SERIES - TALL UNITS » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press either COLD- ER key & UNIT ON/OFF keys simultaneously, then release Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and UNIT...
  • Page 86 700-3 SERIES - TALL UNITS Possible Event Indicators During Temperature Log Recall b1 1 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key Bell (Illuminated) 3 3 8 8...
  • Page 87 700-3 SERIES - TALL UNITS NOTES PAGE 87...
  • Page 88 700-2 SERIES (Base Units) Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. »...
  • Page 89 700-2 SERIES (Base Units) Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press Bell ON/OFF key & UNIT ON/OFF key simultaneously for 5 seconds » Sabbath Mode (Disables lighting) Switch unit OFF Press &...
  • Page 90 700-2 SERIES (Base Units) Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 700BR lower compartment thermistor Fault SERVICE (Flashing) 3 3 8 8 E E E E 700BR upper compartment thermistor fault SERVICE (Flashing)
  • Page 91 700-2 SERIES (Base Units) Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 92 700-2 SERIES (Base Units) Notes PAGE 92...

  • Page 93: 700-3 Series - Base Units

    700-3 SERIES - BASE UNITS Basic Input Operations » Power ON/OFF Press UNIT ON/OFF key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. »...

  • Page 94: Unique Input Operations

    700-3 SERIES - BASE UNITS Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press Bell ON/OFF key & UNIT ON/OFF key simultaneously for 5 seconds » Sabbath Mode (Disables lighting) Switch unit OFF Press &...
  • Page 95 700-3 SERIES - BASE UNITS Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing)

  • Page 96: Diagnostic Mode (Error Code Table)

    700-3 SERIES - BASE UNITS Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & UNIT ON/OFF keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 97 700-3 SERIES - BASE UNITS (CONTINUED) NOTE: If “ E E C C ” (Error Code) is displayed, see Error Code Table on next page. NOTE: If “ E E E E ” is displayed in place of temperature, ther- mistor in that location is faulty.
  • Page 98 700-3 SERIES - BASE UNITS Error Code Table CODE INDICATION Ref. cabinet therm. read open, short or erratic temp for 10+ sec’s Ref. evap. therm. read open, short or erratic temp for 10+ sec’s Fre. cabinet therm. read open, short or erratic temp for 10+ sec’s Fre.
  • Page 99 700-3 SERIES - BASE UNITS » Clearing Error Codes Unit must be ON Repair problem Press and hold Bell ON/OFF key for 15 seconds » Manual Component Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press desired COLDER & UNIT ON/OFF keys simultane- ously for 10 seconds NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD.
  • Page 100 700-3 SERIES - BASE UNITS » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & UNIT ON/OFF keys simultane- ously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD.
  • Page 101 700-3 SERIES - BASE UNITS » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press either COLD- ER key & UNIT ON/OFF keys simultaneously, then release Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and UNIT...
  • Page 102 700-3 SERIES - BASE UNITS Possible Event Indicators During Temperature Log Recall b1 1 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with UNIT ON/OFF key Bell (Illuminated) 3 3 8 8...

  • Page 103: Service Input Operations

    700-3 SERIES - BASE UNITS Service Input Operations » Auto Model Configuration Mode If a new main control board is installed during a service call, double dashes ( - - ) will appear on the LCD indicating the board must be configured for the model it was installed into. Open bottom drawer.
  • Page 104 700-3 SERIES - BASE UNITS MODEL CODE TABLE CODE MODEL 700BR 700BC 427R 700BFI UC-24R / UC-24RO UC-24C UC-24B PAGE 104...
  • Page 105 700-2 SERIES BASE UNITS Notes PAGE 105...

  • Page 106: Model 648Pro & Icb648Pro

    MODEL 648PRO & ICB648PRO Basic Input Operations » Power ON/OFF Press POWER key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. » Icemaker ON/OFF Press ICE MAKER key »...

  • Page 107: Unique Input Operations

    MODEL 648PRO & ICB648PRO Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) Within first minute of power up, press ALARM key & POWER key simultaneously for 5 seconds » Sabbath Mode Switch unit OFF Press & hold POWER key for 10 seconds NOTE: To exit Sabbath Mode, repeat steps above.
  • Page 108 MODEL 648PRO & ICB648PRO Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. 3 3 8 8 SERVICE (Flashing) 3 3 8 8 E E E E Freezer zone thermistor fault E E E E SERVICE (Flashing) 3 3 8 8 Upper Refrigerator zone thermistor fault 3 3 8 8 SERVICE (Flashing) E E E E Lower Refrigerator zone thermistor fault...
  • Page 109 MODEL 648PRO & ICB648PRO Initiating Service Mode: then press For Service Mode, Press and hold COLDER POWER Pro48 Zones SERVICE MODE <-DIAGNOSTICS 1) DIAGNOSTICS -> 1) SELF TEST -> 2) ERROR HISTORY -> 3) THERMISTORS -> SERVICE MODE 4) ACTIVE ZONE ->...
  • Page 110 648PRO & ICB648PRO Error Code Table EC ZONE SERVICE INSTRUCTION Zone “X” Cabinet Thermistor Failure (Device or Wiring) Zone “X” Evaporator Thermistor Failure (Device or Wiring) Zone “X” Condenser Thermistor Failure (Device or Wiring) Ambient Thermistor Failure (Device or Wiring) Check Zone “X”...
  • Page 111 648PRO & ICB648PRO Error Code Table Check Keypad Wiring Replace Keypad Check Wiring / Replace User Display #1 Check Wiring / Replace User Display #2 Datalogger Malfunction Check Communications Cables / Connectors Brownout Check Input Power Supply Explanation of zone error codes If “X”...
  • Page 112 MODEL 648PRO & ICB648PRO Notes PAGE 112...

  • Page 113: Basic Input Operations

    UC SERIES Basic Input Operations » Power ON/OFF Press POWER key » Adjusting Set-Point (Temperature Adjust) Press COLDER or WARMER keys of desired com- partment NOTE: Actual compartment temp. is displayed 10 sec- onds after last keystroke. PAGE 113...

  • Page 114: Unique Input Operations

    UC SERIES Unique Input Operations » Temperature Units Selection Mode (°F or °C Display) (Model UC-24C ONLY) Within 1st minute of power up: Press Freezer WARMER & POWER keys simultaneously Press Freezer WARMER & COLDER keys simultaneously for 15 seconds (Models UC-24B/R/RO ONLY) Within 1st min.
  • Page 115 UC SERIES Possible Error Indicators NOTE: Temperatures shown are for reference only, actual tempera- tures may vary. SERVICE (Flashing) E E E E 3 3 8 8 Freezer compartment thermistor fault SERVICE (Flashing) 0 0 0 0 E E E E Refrigerator compartment thermistor fault SERVICE (Flashing) 0 0 0 0...

  • Page 116: Troubleshooting Input Operations

    UC SERIES Troubleshooting Input Operations » Diagnostic Mode Unit must be ON Press COLDER & POWER keys simultaneously, then release both keys NOTE: After performing the above key strokes, the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 117 UC SERIES (CONTINUED) NOTE: If “ E E C C ” (Error Code) is displayed, see Error Code Table on next page. NOTE: If “ E E E E ” is displayed in place of temperature, ther- mistor in that location is faulty. NOTE: If “...
  • Page 118 UC SERIES Error Code Table CODE INDICATION Ref. cabinet therm. read open, short or erratic temp for 10+ sec’s Ref. evap. therm. read open, short or erratic temp for 10+ sec’s Fre. cabinet therm. read open, short or erratic temp for 10+ sec’s Fre.
  • Page 119 UC SERIES » Clearing Error Codes Unit must be ON Repair problem Press Freezer WARMER & COLDER keys simultane- ously for 15 seconds (Model UC-24C ONLY) Press WARMER & COLDER keys simultaneously for 15 seconds (Models UC-24B/R/RO ONLY) » Manual Component Activation Mode (Energizes cooling system for 5 minutes) Unit must be ON Press desired COLDER &...
  • Page 120 UC SERIES » Temperature Log Recall Mode (Compartment Temperature History Only) Unit must be ON Press desired WARMER & POWER keys simultaneously, then release both keys NOTE: After performing the above key strokes (depending on COLDER key chosen), the following will appear on the LCD. Temperatures shown are for reference only, actual temperatures may vary.
  • Page 121 UC SERIES » Temperature Log Recall Mode (Compartment &/or Evaporator temperature History) With unit on, initiate Diagnostic Mode - Press either COLD- ER key & UNIT ON/OFF keys simultaneously, then release Toggle through temperature readings by pressing COLDER or WARMER key until desired thermistor temperature is observed Press WARMER key for that compartment and POWER simultaneously...
  • Page 122 UC SERIES Possible Event Indicators During Temperature Log Recall b1 1 1 1 0 0 7 7 “bl” indicates index is blank, no temperature recorded yet SERVICE (Illuminated) 3 3 6 6 8 8 9 9 SERVICE illuminated indicates unit was switched off with POWER key Bell (Illuminated) 3 3 8 8...

  • Page 123: Service Input Operations

    UC SERIES Service Input Operations » Auto Model Configuration Mode If a new main control board is installed during a service call, double dashes ( - - ) will appear on the LCD indicating the board must be configured for the model it was installed into. With unit on - Press COLDER or WARMER key to toggle through model codes, then stop when proper code is displayed (See Model Code Table on next page).
  • Page 124 UC SERIES MODEL CODE TABLE CODE MODEL 700BR 700BC 427R 700BFI UC-24R / UC-24RO UC-24C UC-24B PAGE 124...
  • Page 125 UC SERIES Notes PAGE 125...
  • Page 126 Notes PAGE 126...

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