RS5290000 Rev. 0 30 April 1998
Electronic Functional Description
Refrigeration and Defrost Component Checks Made at High Voltage Board
Power Swtich Is ON
Low voltage board input W1 to D11 -25 VDC
High voltage board input E10 (L)/E9 (N) 220 VAC
Compressor/condenser Blue/White Wire Contacts Closed 220 VAC
Fan motor Comp/Relay to E9 Contacts Open 0 VAC
Compressor/condenser E4 to E12 Contacts Closed 220 VAC
Fan motor Contacts Open 0 VAC
Relay coil
Defrost heater E6 to E9 Contacts Closed 220 VAC
Contacts Open 0 VAC
Defrost heater E3 to E12 Contacts Closed -25 VDC
Relay Coil Contacts Open 0 VDC
Defrost terminator E6 to E9 Contacts Closed 220 VAC
(Klixon) Contacts Open 0 VAC
Damper heater output E1 to E11 Contacts Closed -25 VDC
From high voltage board Contacts Open 0 VDC
Damper heater input R10 to E11 Contacts Closed -11 VDC
From low voltage board Contacts Open -25 VDC
From high voltage board
Evaporator Fan Motor E2 to E12 Contacts Closed -25 VDC
Relay Coil Contacts Open 0 VDC
To avoid electrical shock which can cause severe personal injury or death, disconnect power to refrigerator using
power switch before servicing. Discharge capacitors through a resistor before handling. Wires removed during
disassembly must be replaced on proper terminals to insure correct earthing and polarization. After servicing,
reconnect power using power switch.
WARNING
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