Whirlpool KRFC704FSS - Page 30

For Service Technician Use Only
DIAGNOSTICS
1-26
n
French-Door Boom Mount Refrigerator

Diagnoscs has several Service Tests to aid in troubleshoong the RC Defrost system.

• Ensure the thermistor is not Open “OP” or Shorted “SH”.
Replace any faulty thermistors.

• Ensure the thermistor is not Open “OP” or Shorted “SH”.
Replace any faulty thermistors.

• Ensure LED Display shows “on”
• Check that the fan is operang

• Check all wiring connectors ght (See FIGURE 6, Page 4-6).
• Check integrity of wiring between control board and fan.
(Connuity or Voltage check as appropriate)

• Replace wiring harness

• Replace fan.

• Replace GF2 Board.
P16-4 Pin 8
16 Pin Conector
12 Pin Conector
Machine Compartment
Left Side
Bottom RightSide
RC Evaporator Area
RC
Fan
3 Pin Fan Conector
Evaporator Cover Assembly
Orion Board
+12.7 VDC
Fan
Power
Supply
P14-3
GF2 Board
Pin 7 in 1P
Pin 8 in 2P
&
Controls
Speed
GY GY
+12.7 VDC
Turns Fan
BR BR
V V V
Pin 3P14-4 Pin 9
Neutral
TN TN TN