Samsung RF30HBEDBSR Service Manual page 60

TROUBLESHOOTING
※ R Self-diagnostics check list
LED
F R
Flex Zone-Damper-
Heater Error
Ice Maker(FF) Function
Error
Ice Room-FAN Error
Display ↔ Main Micom
FF Ice Pipe Heater
Error
Ice Room Bucket
Heater Error
Comp starting Failure
Error
IPM Fault Error
Comp Abnormal
current Detection
Error
Motor Locked Over
RPM Error
Comp under voltage
Error
Comp over voltage
Error
Item
Display error when open error is detected
by damper heater : separation of Damper
Heater housing part, contact error,
disconnection, short circuit.
Display error when open error is detected
by Heater : separation of Ice Pipe Heater
housing part, contact error, disconnection,
short circuit.
Display error when the Ice Maker(FZ) kit
operate moving ice over 3 times or it is
not leveled.
Main mycom ↔ Display "41-E" message
and make a buzzing sound when the
Communication Error communication between displays does
not work.
Display error when open error is detected
by ice duct heater : separation of FF Ice
Pipe Heater housing part, contact error,
disconnection, short circuit.
Display error when open error is detected
by ice room bucket heater : separation
of Ice Room Bucket Heater housing part,
contact error, disconnection, short circuit.
When the Compressor fails starting
When there is a IPM Fault error
When there is abnormal current detected
at the Compressor
When there is a Compressor restriction
error
When there is a low voltage error
When there is a over voltage error
F
Trouble contents
R
60
Diagnostic method
After separating MAIN PCB CN77 wire from PCB,
resistance value between Black ↔ Brown wire shall
be 135 ohm± 7%.
0 ohm : heater short, ∞ Ohm : wire / bimetal Open.
After changing the Ice Maker(R), plug the
refrigerator power code again, and check the
operation.
The voltage of MAIN PCB CN76-"2"(Black) ↔
CN76-"1" (Gray): shall be between 7V~12V
Actually, If there is not a problem, it is desirable
to replace Main and Panel PCB With the
oscilloscope after a cable problem confirming.
After separating MAIN PCB CN79 / CN51
wire from PCB, resistance value between CN51
Brown ↔ CN79 Orange shall be 135 ohm ± 7%.
(Resistance value is varied by input power) 0
ohm : heater short, ∞ ohm : (Must power off)
After separating MAIN PCB CN79 wire from PCB,
resistance value between Brown ↔ Orange wire
shall be 135 ohm± 7%.
0 ohm : heater short, ∞ Ohm : wire.
Check if there is a short between compressor
terminals. Check IPM Voltage [Under 13.5V]
Check if there is a short between IPM Pins
[#1~33] Check the Compressor and the Cycle
Check the Compressor connections Check
the voltage of Resistance of R308 [0.09Ohm]
Check the Compressor and the Cycle
Check the voltage of Resistance of R308
[Short/Open] Check the voltage of both of
C103 terminals [Unstable Voltage] Check the
Compressor and the Cycle
Check the voltage of Resistance of R513 [Short/
Open]
Check the voltage of Resistance of R501, R505,
R509 [Short/Open]