Whirlpool WRF954CIHV Service Manual page 15

GF2 High Voltage Board
The GF2 board is located on the back left side of the cabinet
behind a metal cover. It receives 115 VAC and 12.7 VDC power
from the Orion board. It uses this power to produce 5 VDC
power, and supply loads.
115 VAC Supply
The GF2 board is supplied 115 VAC power at P1-1 and P3-5.
Power is supplied from the Orion board, P1-4.
115 VAC Load(s)
The GF2 board supplies 115 VAC power to the following loads:
• Pantry air baffle
• Ice maker duct cabinet heater
• Freezer compartment defrost heater
• Refrigerator compartment defrost heater (selected models)
• Ice maker water valve
• Water isolation valve
• Freezer compartment ice maker water valve (select models).
140 VDC Supply
The GF2 board uses the 115 VAC power to generate a 140 VDC
power supply.
140 VDC Load(s)
The GF2 board directly supplies 140 VDC power to the following
load(s):
• Ice dispenser motor
For Service Technician Use Only
GF2 Board
12.7 VDC Supply
The GF2 board is supplied 12.7 VAC power at P6-2.
Power is supplied from the Orion board, P16-1.
12.7 VDC Load(s)
The GF2 board directly supplies 12.7 VDC power to the following
load(s):
• Fill tube heater – FC ice maker (select models)
• Ice maker motor – FC ice maker (select models)
• Ice maker motor switch – FC ice maker (select models)
• Ice box fan (speed control)
• FC evaporator fan (speed control)
• RC evaporator fan (speed control)
• Condenser fan (speed control).
P1-1
115 VAC Supply
P6-2
5 VDC Supply
The GF2 board uses the 12.7 VDC power to generate a 5 VDC
power supply:
5 VDC Load(s)
The GF2 board supplies 5 VDC power to the following loads:
• FC temperature thermistor
• RC temperature thermistor
• FC evaporator temperature thermistor
• RC evaporator temperature thermistor.
French-Door Bottom Mount Refrigerator
DIAGNOSTICS
P3-5
12.7 VDC Supply
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1-11