©2004 Maytag Services
16023324 Rev. 0
3
Important Information .................................................... 2
Product Design ............................................................. 4
Component Testing ....................................................... 5
Service Procedures ...................................................... 10
Service Equipment ....................................................... 10
Drier Replacement ....................................................... 10
Refrigerant Precautions ................................................ 11
Line Piercing Valves ..................................................... 11
Open Lines .................................................................. 11
Compressor Operational Test ....................................... 11
Dehydrating Sealed Refrigeration System .................... 12
Leak Testing ................................................................. 12
Testing Systems Containing a
Refrigerant Charge ................................................. 12
Testing Systems Containing
No Refrigerant Charge ............................................ 12
Restrictions .................................................................. 13
Symptoms ............................................................. 13
Testing for Restrictions .......................................... 13
Evacuation and Charging .............................................. 14
Evacuation ............................................................. 14
Charging ................................................................ 15
Refrigerant Charge ................................................. 15
HFC134a Service Information ....................................... 16
Health, Safety, and Handling .................................. 16
Comparison of CFC12 and HFC134a Properties ..... 16
Replacement Service Compressor ................................ 17
Compressor Testing Procedures ............................ 17
Brazing ........................................................................ 17
Refrigerant Flow ........................................................... 18
Cabinet Air Flow ........................................................... 19
Two Way Machine Compartment Air Flow Diagram ...... 20
One Way Machine Compartment
Air Flow Diagram ......................................................... 21
Typical External Sweat Pattern...................................22
Troubleshooting Chart................................................23
System Diagnosis ........................................................ 26
Disassembly Procedures
Fresh Food Door .................................................... 29
Freezer Door .......................................................... 29
Freezer Drawer ...................................................... 29
Refrigerator Compartment
Light Bulb .............................................................. 29
Light Bulb Assembly .............................................. 29
Light Bulb Sockets ................................................ 30
PC Control Board ................................................... 30
Light Switch ........................................................... 30
Temp- Assure
™
Damper control ............................ 30
Fresh Food Thermistor ........................................... 30
Water Tank ............................................................ 30
Water Dispenser .................................................... 31
Freezer Compartment
Freezer Thermistor ................................................. 31
Light Socket .......................................................... 31
Light Switch ........................................................... 31
Freezer Back Panel ............................................... 31
Evaporator Fan and Evaporator Motor ................... 31
Defrost Terminator (thermostat) .............................. 32
Defrost Heater ....................................................... 32
Evaporator Removal ............................................... 32
Drawer Assembly ................................................... 33
Drawer Rails .......................................................... 33
Rack and Pinion Gear ............................................ 33
Bottom of Cabinet
Front roller assembly ............................................. 33
Rear roller assembly............................................33
Machine Compartment
Condenser Fan and Fan motor ............................... 33
Compressor ........................................................... 33
Overload/Relay/Capacitor ....................................... 34
Condensate Drain Pan ........................................... 34
Condensate Drain Tube .......................................... 34
Condenser Removal ............................................... 34
Control Board ( Mid Level)
Programming Mode ............................................... 35
Defrost Operation ................................................... 35
Forced Defrost Mode ............................................. 35
Service Test Mode ................................................. 36
Service Test 1-Defrost Thermostat & Defrost Circuit
Test ....................................................................... 37
Service Test 2-Compressor/Condenser Fan Test .... 37
Service Test 3-Evaporator/Freezer Fan Test ........... 37
Service Test 4-Fresh Food Thermistor Test ............ 38
Service Test 5-Freezer Thermistor Test .................. 38
Service Test 6-Open Damper Test .......................... 39
Service Test 7-FF Performance Adjustment ............ 39
Service Test 8-FZ Performance Adjustment ............ 39
Table of Contents
