Sub-Zero 700-2 Series

Page 33
Electronic Control
Integrated (
Integrated (
700-
700-
2) Series
2) Series
3-23
#3756780 - Revision D - July, 2005
UNIT
UNIT
ICE
ICE
WARMER
WARMER
COLDER
COLDER
REFRIGERATOR
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
WARMER
WARMER
COLDER
COLDER
FREEZER
FREEZER
ICE
ICE
SERVICE
SERVICE
OFF
OFF
UNIT
UNIT
ICE
ICE
WARMER
WARMER
COLDER
COLDER
REFRIGERATOR
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
WARMER
WARMER
COLDER
COLDER
FREEZER
FREEZER
ICE
ICE
SERVICE
SERVICE
OFF
OFF
Figure 3-46. “EE” Observed in Diagnostic Mode = Thermistor Fault in Location Indicated by Code
Figure 3-47. “Sr” Observed While in Diagnostic Mode = Unit is in Showroom Mode
If “EE” is observed in left display area during Diagnostic Mode, the thermistor in that location is open or shorted, or
there is a break in that thermistor’s wiring (See Figure 3-46).
If “Sr” is observed at left display area during Diagnostic Mode, the unit is in Showroom Mode, which was explained
earlier in this section (See Figure 3-47).
ICE
ICE
UNIT
UNIT
ICE
ICE
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
WARMER
WARMER
COLDER
COLDER
FREEZER
FREEZER
SERVICE
SERVICE
OFF
OFF
Figure 3-48. (700TF/I-2V Only) “SP” Observed While in Diagnostic Mode = Compressor Speed Command
If “SP” is observed in right display area during Diagnostic Mode, this indicates the speed commands being sent from
the microprocessor to the compressor controller. This will only appear in the model 700TF/I-2V. (See Figure 3-48).
NOTE: Speed commands display as: “00” = 0 RPM, “16” = 1600 RPM, “17” = 1700 RPM, “18” = 1800 RPM, “21” =
2100 RPM, “22” = 2200 RPM, “24” = 2400 RPM and “27” = 2700 RPM, “36” = 3600 RPM and “40” = 4000 RPM
After serial #1759493 (700TC/I-2), #1759163 (700TR-2) and #1757258 (700TF/I-2 & 700TF/I-2V), If “EC” is
observed in the right display area during Diagnostic Mode, the numbers at left are “Error Codes” (See Figure 3-49
and the Error Code Table on next page). Error Codes indicate problems registered by specific components. If error
codes are registered, they will appear before temperature readings and can be toggled through with the temperature
readings as described on the previous page.
UNITICE
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
WARMERCOLDER
FREEZER
WARMERCOLDER
ICE
SERVICE
OFF
Figure 3-49. “EC” Observed While in Diagnostic Mode = Error Code (See Table on Following Page)
700TC/I-2
THERMISTOR LOCATION CODE
Freezer Compartment F
Refrigerator Compartment r
Freezer Evaporator FE
Refrigerator Evaporator rE
700TR-2
THERMISTOR LOCATION CODE
Lower Compartment L
Upper Compartment U
Lower Evaporator LE
Upper Evaporator UE
700TF/I-2
THERMISTOR LOCATION CODE
Freezer Compartment F
Freezer Evaporator FE
700TF/I-2V
THERMISTOR LOCATION CODE
Compressor Speed SP
Freezer Compartment F
Freezer Evaporator FE