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RS1200001 32 November 1996
Electronic Functional Description
Refrigeration and Defrost Component Checks Made at High Voltage Board
Low voltage board input W1 to D11 approximately -25 VDC
High voltage board input E10 to E9 (Neutral) or ground approximately 120 VAC
Compressor/condenser fan motor “ON” = E4 to E9 (Neutral) ground approximately 120 VAC
“OFF” = E4 to E9 (Neutral) or ground
Compressor/condenser fan motor “CLOSED” = R7 to ground approximately -11 VDC
relay“OPEN” = R7 to ground approximately -25 VDC
Evaporator fan motor relay “CLOSED” = R8 to ground approximately -11 VDC
“OPEN” = R8 to ground -25 VDC
Evaporator fan motor “ON” = E2 to E9 (Neutral) or ground approximately 120 VAC
“OFF” = E2 to E9 (Neutral) or ground 0 VAC
Defrost heater “ON” = E6 to E9 (Neutral) or ground approximately 120 VAC
“OFF” = E6 to E9 (Neutral) or ground 0 VAC
Defrost heater relay “CLOSED” = R9 to ground approximately -11 VDC
“OPEN” = R9 to ground approximately -25 VDC
Defrost terminator “CLOSED” = E5 to E9 (Neutral) or ground approximately 120 VAC
“OPEN” = E5 to E9 (Neutral) or ground 0 VAC
Fresh food fan output voltage “ON” = E1 to ground approximately -25 VDC
High voltage board to fresh food fan “OFF” = E1 to ground 0 VDC
Fresh food fan input voltage “ON” = R10 to ground approximately -11 VDC
Signal to high voltage board from
low voltage board “OFF” = R10 to ground approximately -25 VDC
Filament voltage at pins 11 and 12 = less than 5 VAC
To avoid electrical shock which can cause severe personal injury or death, disconnect power to
refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on
proper terminals to insure correct earthing and polarization. After servicing, reconnect power using power
switch.
WARNING