How To Use The General Troubleshooting Guide; Thermistor Location Code Tables - Sub-Zero 700-3 BASE Technical & Service Manual

Troubleshooting Guides

HOW TO USE THE GENERAL TROUBLESHOOTING GUIDE

• The table on page 8-6 indicate how the General Trouble Shooting Guide is arranged.
• Identify the description of the problem that the unit is experiencing from the table.
• To the left of the problem description is a letter.
• Locate that letter in the left column of the General Troubleshooting Guide.
• The center column will identify the possible causes for the problem.
• The information in the right column explains the tests to perform and/or action to take to correct the problem.
• If the unit is experiencing temperature problems, refer to the instructions below before beginning troubleshooting.
For Temperature Problems
1. Begin troubleshooting by observing compartment set points.
2. If set-points are normal, initiate Diagnostic Mode by pressing and holding either COLDER key, then press UNIT
ON/OFF key, then release both keys.
NOTE: Diagnostic Mode will end twenty seconds after last key stroke.
3. When Diagnostic Mode is initiated, check to see if "Error Codes" are present, being sure to toggle through all
error codes and temperature readings by pressing either COLDER key, or either WARMER key. (See
Thermistor Location Code Tables below.)
4. If Error Codes are present, refer to Error Code Troubleshooting Guide on previous pages.
5. If no Error Codes, initiate Manual Component Activation Mode (which lasts for 5 minutes) by pressing and hold-
ing freezer COLDER and UNIT ON/OFF keys for 10 seconds, then observe evaporator temperatures.
6. After observing evaporator temperature as instructed above, take note of "Pointers" in first column of the trou-
bleshooting guide under problems "A" through "D". The "Pointers" list what possible causes to check based on
evaporator temperature observed.
NOTE: If compartment and/or evaporator temperature history is needed to help diagnose problem, initiate
Temperature Log Recall Mode. Begin with unit ON and in Diagnostic Mode. While in Diagnostic Mode, toggle
through readings until desired thermistor temperature is displayed on LCD. Now, press UNIT ON/OFF key then
either WARMER key simultaneously. Toggle through indexes by pressing WARMER or COLDER key.
BCI-3 Thermistor Code Table
THERMISTOR LOCATION
Freezer Compartment
Refrigerator Compartment
Evaporator
#3758424 - Revision B - December, 2005
Integrated
BR-3 Thermistor Code Table
CODE THERMISTOR LOCATION
F Refrigerator Compartment
r
E
3
(700- BASE)
CODE
r
Evaporator E
8-6
Series
BFI-3 Thermistor Code Table
THERMISTOR LOCATION
Freezer Compartment
Evaporator
CODE
F
E