Diagnostic Mode Indicators - Sub-Zero 700TC-3 Service Manual

Electronic Control System
700TC/I-3 & 736TC/I-3
THERMISTOR LOCATION
Freezer Compartment
Refrigerator Compartment
Freezer Evaporator
Refrigerator Evaporator

Diagnostic Mode Indicators

If "EE" is observed in the 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 3-52).
SERVICE
ICE OFF
Figure 3-52. "EE" Observed in Diagnostic Mode = Thermistor Fault in Location Indicated by Code
If "Sr" is observed in the left display area when Diagnostic Mode is initiated, the unit is in Showroom Mode, which
was explained earlier in this section (See Figure 3-53).
SERVICE
ICE OFF
Figure 3-53. "Sr" Observed While in Diagnostic Mode = Unit is in Showroom Mode
If "EC" is observed in the right display area during Diagnostic Mode, the numbers at left are "Error Codes" (See
Figure 3-55 and the Error Code Table on next page). Error Codes indicate problems registered by specific compo-
nents. 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.
SERVICE
ICE OFF
Figure 3-55. "EC" Observed While in Diagnostic Mode = Error Code (See Table on Following Page)
#3758412 - Revision B - December, 2006
Integrated
Integrated
700TR-3 & 736TR-3
CODE THERMISTOR LOCATION
F Lower Compartment
r Upper Compartment
FE Lower Evaporator
rE Upper Evaporator
FREEZER
FREEZER
FREEZER
3
3
(700- T ALL)
(700- T ALL)
CODE THERMISTOR LOCATION
L
U
LE
UE
COLDER WARMER COLDER WARMER
COLDER WARMER COLDER WARMER
COLDER WARMER COLDER WARMER
3-22
Series
Series
700TF/I-3
Freezer Compartment
Freezer Evaporator
ICE
REFRIGERATOR
ON/OFF
ON/OFF
ICE
REFRIGERATOR
ON/OFF
ON/OFF
ICE
REFRIGERATOR
ON/OFF
ON/OFF
CODE
F
FE
UNIT
ON/OFF
UNIT
ON/OFF
UNIT
ON/OFF