Viking RDDFF236, Service Manual

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© 2012 Viking Preferred Service
2
Table of Contents
Description Page Description Page
IMpoRTanT InFoRMaTIon
Safety Information ............................................................ 3
Warnings .......................................................................... 4
Model – Serial Number Matrix .......................................... 5
opeRaTIon
Entering Programming Mode........................................... 11
DIagnoSTICS
Defrost Operation ........................................................... 14
Entering Forced Defrost Mode ....................................... 14
Entering Service Test Mode ............................................ 16
Service Tests .................................................................. 17
101 Defrost Heater and Defrost Circuit ....................... 17
102 Compressor/Condenser Fan ................................ 17
112 Freezer Fan .......................................................... 17
121 Damper Operation ................................................ 18
131 Mullion Heater ...................................................... 18
141 Fresh Food Thermistor ......................................... 18
142 Freezer Thermistor ............................................... 18
146 Machine Compartment Thermistor ....................... 19
151 Fresh Food Door State ......................................... 19
152 Freezer Food Door State ...................................... 19
153 Disable Internal Light ............................................ 19
163 Water Dispenser ................................................... 20
174 Water Actuator Internal Dispenser ........................ 20
182 LED Indicator ........................................................ 20
183 Keypad Operation ................................................. 20
191 Ice Maker Water Valve .......................................... 21
201 Mullion Heater Override ........................................ 21
202 Default Defrost Operation ..................................... 21
203 Show Temperature Set Points .............................. 21
211 Fresh Food Temperature Offsets .......................... 22
212 Freezer Temperature Offsets ................................ 22
221 Reset Default Settings ......................................... 22
231 Water Filter Usage ................................................ 23
232 Water Filter Days In Use ....................................... 23
241 Software Revision Main Control Board ................. 23
242 Software Revision Display Board ......................... 23
SeRvICe DIagnoSTICS anD pRoCeDuReS
Parts Location–Upper Control Board and Main Control
Board .............................................................................. 24
Parts Location–Secondary Control Board ...................... 25
Component Testing ......................................................... 26
Component Testing–Control Board ................................ 26
Main Control Board Wiring Connections ........................ 27
Secondary Control Board Wiring Connections ............... 28
Parts Location–Refrigerator............................................ 29
SeRvICe DIagnoSTICS anD pRoCeDuReS–
DISaSSeMBly
Refrigerator Light Bulb.................................................... 30
Refrigerator Light Housing.............................................. 30
Control Board ................................................................. 31
Refrigerator Temperature Sensor ................................... 32
Vegetable/Meat Temperature Control ............................. 32
Refrigerator Light Switch ................................................ 33
Water Tank...................................................................... 33
Water Dispenser ............................................................. 34
Refrigerator Damper: ...................................................... 35
Water Flow ..................................................................... 36
Parts Location–Freezer .................................................. 37
Freezer Drawer Switch ................................................... 38
Freezer Light Bulb .......................................................... 38
Freezer Light Housing .................................................... 38
Freezer Drawer, Bins, Baskets, Glides and Glide Adapters
39
Ice Maker (shown here with cover off) ............................ 42
Thermal Cut Out (TCO) .................................................. 45
Component Testing–Ice maker ....................................... 45
Freezer Thermistor ......................................................... 46
Evaporator Cover ........................................................... 47
Evaporator Fan ............................................................... 47
Defrost Heater ............................................................... 48
Defrost Thermostat ......................................................... 49
Parts Location–Rear ....................................................... 50
Main and Secondary Control Boards.............................. 51
Overload Relay ............................................................... 52
Condenser Fan ............................................................... 52
Water Valve .................................................................... 53
Troubleshooting Guide ................................................... 54
WIRIng anD SCheMaTICS
Full Schematic ................................................................ 57
Wiring Diagram ............................................................... 58