GE Profile PFSS6NKW Technical Service Manual page 80

LED Item
F-1- Ice Room Sensor Error Display error: sensor housing
f
F-1- Freezer Defrost Error
g
F-10- Ice Room Fan Error
b
R-10- Pantry Damper Heater
a
Error
R-10- Pantry Sensor Error
b
R-10- Water Tank Heater
g
Error
F-10- Panel to Main
g
Communication Error
F-10- Load to Main
f
Communication Error
Trouble Contents
separation, contact error,
disconnection, short circuit
Display error by detecting
temperature of sensor: more than
149°F (+65°C) or less than -58°F (-50°C)
Display error: separation of freezer
compartment defrost heater housing
part, contact error, disconnection,
short circuit, or temperature fuse error
Display error: The defrosting does
not fi nish through fresh food
compartment. Compartment defrost is
heating continuously for more than 70
minutes.
Display error during operation of fan
motor: feedback signal line contact
error, motor wire separation, motor
error
Display error: when open error
is detected by damper heater:
separation of damper heater housing
part, contact error, disconnection,
short circuit
Display error: separation of sensor
housing, contact error, disconnection,
short circuit
Display error by detecting
temperature of sensor: more than
149°F (+65°C) or less than -58°F (-50°C)
Display error when open error is
detected by water tank heater:
separation of water tank heater
housing part, contact error,
disconnection, short circuit
Display of Pc/Lc Er in the panel with
alarm:
MICOM MAIN to LOAD communication
error
MICOM MAIN to PANEL communication
error
– 80 –
Diagnostic Method
Check the voltage of MAIN PCB
CN32 #3 to CN75 #1. It should
be between 4.5V to 1.0V.
After separating MAIN PCB
CN70 and CN71 from PCB,
check the resistant value
between CN70 brown to CN71
orange. It should be 102 ohms
± 7%. (Resistance value is varied
by the input power.) Check 0
ohm: heater short, ∞ ohm: wire/
bimetal open.
Voltage of MAIN PCB CN76
black to CN75 gray should be
between 6V to 12V.
After separating MAIN PCB
CN91 from PCB, check the
resistant value between black
to brown wire. It should be
145 ohms ± 7%. Check 0 ohm:
heater short, ∞ ohm: wire/
bimetal open.
Check the voltage of MAIN PCB
CN30 #8 to #9. It should be
between 4.5V to 1.0V.
After separating MAIN PCB
CN78 from PCB, check the
resistant value between black
to brown wire. It should be
45 ohms ± 7%. Check 0 ohm:
heater short, ∞ ohm: wire/
bimetal open.
It is desirable to recheck the
condition with the oscilloscope
after replacing Main and Panel
PCBs