Whirlpool KRFC704FSS - Page 15

For Service Technician Use Only
DIAGNOSTICS
French-Door Boom Mount Refrigerator
n
1-11

The GF2 board is located on the back le 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.

The GF2 board is supplied 115 VAC power at P1-1 and P3-5.
Power is supplied from the Orion board, P1-4.

The GF2 board supplies 115 VAC power to the following loads:
• Pantry air bae
• Ice maker duct cabinet heater
• Freezer compartment defrost heater
• Refrigerator compartment defrost heater (selected models)
• Ice maker water valve
• Water isolaon valve
• Freezer compartment ice maker water valve (select models).

The GF2 board uses the 115 VAC power to generate a 140 VDC
power supply.

The GF2 board directly supplies 140 VDC power to the following
load(s):
• Ice dispenser motor

The GF2 board is supplied 12.7 VAC power at P6-2.
Power is supplied from the Orion board, P16-1.

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).

The GF2 board uses the 12.7 VDC power to generate a 5 VDC
power supply:

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.
GF2 Board
12.7 VDC Supply
P6-2
P1-1
P3-5
115 VAC Supply