Samsung RF32FM SERIES Service Manual page 46

TROUBLESHOOTING
Error Code Part
Freezer Defrosting
Error
Cool Select Room
defrosting Error
Cool Select Room
Fan Error
Ice Maker (Fridge)
Function Error
Ice Maker Fan Error
Main↔Panel Error
Fridge Ice Duct
Heater Error
Fridge Ice Bucket
Heater Error
Door Handle Heater
Error
Display Criteria
The separation of the freezer
compartment defrosting heater housing
part, contact error, disconnection, short
circuit or temperature fuse error. One
of these error codes is displayed if the
defrosting operation of the freezer or
Cool Select Room does not finish even
after the continuous heating operation
has been performed for 120 minutes.
One of these error codes is displayed in
case of the feedback signal line contact
error, the motor wire separation or the
motor error when the fan motor starts to
run.
It occurs when there is a defect in
removing ice cubes or in making it
paralleled [ When there is an error while
doing self-diagnosis of the Initial Motor
Rotation.]
When the related Fan Motor operates, it
occurs if the contact of the Feed Back
Signal Wire is defective, the Motor Wire
is slipped out or the Motor is defective.
A communications error between the Main
and the Panel PCBs
Connector Slipped-Out or Open-Contact,
Wire Cut or Short-Circuited, Defective
Thermistor
Door Handle Heater Open Error
46
To check if the part is normal
After separating the MAIN PCB CN70 wire from the
PCB, check the resistance between CN70 7 and
1. (For the resistance value, refer to the electric
wiring diagram). For 0 Ohm, check if the heater is
short-circuited. For ∞ Ohm, check if the wire or
temperature fuse is open-circuited.
After separating the MAIN PCB CN70 wire from the
PCB, check the resistance between CN70 3 and
1. (For the resistance value, refer to the electric
wiring diagram). For 0 Ohm, check if the heater is
short-circuited. For ∞ Ohm, check if the wire or
temperature fuse is open-circuited.
The voltage of the MAIN PCB CN75 1↔6: should
be between 7V~12V.
After replacing the Ice Maker (Fridge), plug in
the Fridge and check if the Ice Maker operates
normally
The voltage between MAIN PCB CN50-"8(GRY) ↔
15(BLU)" should be 12V.
Since an oscilloscope is required for the examination,
it is recommended replacing the Main PCB and then
checking the problem again.
Remove the MAIN PCB CN52 and CN79 connectors
from the MAIN PCB and read the continuity between
CN52 #5 ↔ CN79 #3. (Refer to the Block Diagram for the
Resistance Value.)
When it reads 0 Ohm, check the Heater short and when
it reads ∞ Ohm, check if the Wire is open or slipped out.
Remove the MAIN PCB CN52 and CN79 connectors
from the MAIN PCB and read the continuity between
CN52 #1 ↔ CN79 #3. (Refer to the Block Diagram for the
Resistance Value.)
When it reads 0 Ohm, check the Heater short and when
it reads ∞ Ohm, check if the Wire is open or slipped out.
After separating the MAIN PCB CN51 and CN76 wires
from the PCB, check the resistance between CN51 9 and
CN76 2. (For the resistance value, refer to the electric
wiring). For 0 Ohm, check if the heater is short-circuited.
For ∞ Ohm, check if the wire is open-circuited or not
connected.