November 1996
3
RS1200001
Contents
Safety and Electrical Information
Safety Symbols, Words, and Labels ....................... 2
Electrical Requirements .......................................... 2
Grounding Information ............................................. 2
Installation Instructions ............................................... 5
Sound Information ...................................................... 9
System Diagnosis
Pressure and Relationship Chart ........................... 10
Refrigerant Overcharge Symptoms ....................... 11
Refrigerant Shortage Symptoms ............................ 11
Restriction Symptoms ............................................ 11
Air in System Symptoms ....................................... 12
Low or High Ambient Temperature Installation .........
Symptoms .............................................................. 12
Heat Load Symptoms ............................................ 12
HFC134a Service Information
Health, Safety, and Handling ................................. 13
Comparison of CFC12 and HFC134a Properties .. 13
Service Equipment ................................................ 14
Drier Replacement ................................................ 14
Replacement Service Compressor ....................... 15
Refrigerant Charge ................................................ 15
Leak Testing ........................................................... 15
Evacuation and Charging ...................................... 15
Refrigerant Flow ....................................................... 17
Air Flow ..................................................................... 18
Machine Compartment Assembly ............................ 19
Component Function and Testing ............................. 20
Electronic Functional Description ............................. 25
Electronic Testing Mode ........................................ 26
Forced Defrost Activation .................................. 26
Forced Compressor Activation ........................... 26
Open Thermistor Detect ..................................... 26
Key Board Functions ............................................. 26
Display On Pad .................................................. 26
Warmer Pad ....................................................... 26
Colder Pad ......................................................... 26
Freezer Temp Pad .............................................. 27
Ref Temp Pad .................................................... 27
Vacation Pad ...................................................... 27
Max Ref Pad ...................................................... 27
Max Frz Pad ....................................................... 27
Alarm Off Pad .................................................... 27
Display Off Pad .................................................. 27
Door Open Alarm ............................................... 27
High Temp .......................................................... 27
Temperature Control Operation ............................. 27
Adaptive Defrost Operation ................................... 28
Power Up Condition ............................................... 28
EEPROM Update in Control Memory ................... 28
Accessing Program Mode .................................. 28
Operation ............................................................ 29
Mode A Functions .............................................. 29
Mode B Functions .............................................. 29
Exiting Program Mode ....................................... 30
Refrigeration and Defrost Component Checks .........
Made at High Voltage Board ................................. 32
Circuitry ................................................................. 33
Freezer Compartment Refrigeration ......................
Cycle Circuitry .................................................... 33
Fresh Food Compartment Refrigeration ................
Cycle Circuitry .................................................... 33
Fresh Food and Freezer Compartment .................
Refrigeration Cycle Circuity ............................... 33
Adaptive Defrost Circuitry .................................. 33
Door Disassembly Procedures
Air Discharge Grille ............................................... 34
Refrigerator Door ................................................... 34
Freezer Drawer and Basket ................................... 34
Door Stops ............................................................. 34
Door Handles ......................................................... 34
Door Gaskets ......................................................... 34
Inner Door Liners and Outer Door Shells .............. 34
Refrigerator Door Switch ....................................... 34
Cabinet Components Disassembly Procedures
Refrigerator Fan .................................................... 35
Refrigerator Light Switch ....................................... 35
Refrigerator Light Socket ....................................... 35
Center Mullion ....................................................... 35
Freezer Switches and Thermistor Panel ............... 35
Freezer Evaporator Cover ..................................... 35
Defrost Thermostat ................................................ 35
Evaporator Defrost Heater .................................... 35
Evaporator ............................................................. 35
Evaporator Fan Blade ........................................... 35
Evaporator Fan Motor ........................................... 35
Front and Rear Roller Assembly ........................... 35
Water Valve ........................................................... 35
Condensate Drain Pan .......................................... 36
Shelf Support Ladders ........................................... 36
Chef's Pantry Assembly ........................................ 36
Refrigerator Thermistor ......................................... 36
Machine Compartment Disassembly Procedures
Machine Compartment Access ............................. 37
Low and High Voltage Board and Showroom Switch
Access ................................................................... 37
Low Voltage Board ................................................. 37
High Voltage Board ................................................ 37
Compressor, Condenser, and Condenser .................
Fan Access ............................................................ 37
Capacitor ............................................................... 37
Overload and Relay ............................................... 37
Condenser Fan Blade ............................................ 37
Condenser Fan Motor ............................................ 37
Precondenser Pan Loop ........................................ 37
Compressor ........................................................... 37
Condensate Drain Pan .......................................... 38
Condenser ............................................................. 38
Power Disconnect Switch ...................................... 38
Showroom Switch .................................................. 38
Typical External Sweat Pattern ................................ 39
Troubleshooting Guide .............................................. 40
Summary of Contents for Bottom Freezer Refrigerator
Page 17: ...November 1996 17 RS1200001 Refrigerant Flow ...
Page 18: ...RS1200001 18 November 1996 Air Flow ...
Page 19: ...November 1996 19 RS1200001 Machine Compartment Assembly ...
Page 25: ...November 1996 25 RS1200001 Electronic Functional Description ...
Page 50: ...RS1200001 50 November1996 Ice Maker Wiring Diagram and Parts Layout 115 ...
