Samsung RF23R6 Series Service Manual page 63

※ R Self-diagnostics check list
LED
F R
Fridge Ice Room
abnormal high-
indicator blinks
abnormal high-
indicator blinks
abnormal high-
indicator blinks
AUTO FILL Infuser
Overflow Error
Item Diagnostic method
After separating MAIN PCB CN20
wire from PCB, resistance value
between CN20-"19" ↔ "23" shall be
135 ohm ± 7%. (Resistance value is
Heater Error
varied by input power)
0 ohm : heater short, ∞ ohm : wire/
bimetal open (Must power off)
The Freezer
compartment
temperature
Check if the door has been open for
The Fridge
a long time or if hot food has been
compartment
stored in the compartment. If the
reason for the error is removed, the
temperature
error code disappears after a pre-
determined period of time.
The Flex-Zone
compartment
temperature
Check voltage of MAIN PCB
CN90-"11" ↔ "13"
- 0V ~ 4.5V : Water overflow
- 4.5V ~ 5V : No problem
Check if there is a short between
Comp start
compressor terminals.
failure error
Check IPM Voltage [Under 13.5V]
Check if there is a short between IPM
Pins [#1~33]
Check the soldering status of the
Comp IPM
inverter PCB. (Check if any parts have
Fault Error
short-circuited).
Check the Compressor and the Cycle.

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