Samsung RF18A Series Service Manual page 71

CHECK THE INSTALLATION STATUS
* Self-diagnosis CHECK LIST
LED
F R
Communication
Main ↔Inverter
Communication
Main ↔ Wifi module
Communication
The Freezer compartment
abnormal high-
temperature indicator
The Fridge compartment
high-temperature
indicator blinks
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Item Diagnostic method
Main ↔ Panel
Actually, If there is not a problem, it is
desirable to replace Main and Panel
(F-HUB)
PCB With the oscilloscope after a cable
problem confirming.
Error
Actually, If there is not a problem, it is
desirable to replace Main and Inverter
PCB With the oscilloscope after a cable
Error
problem confirming.
Actually, If there is not a problem, it
is desirable to replace Main and WiFi
PCB With the oscilloscope after a cable
Error
problem confirming.
blinks
Check if the door has been open for a
long time or if hot food has been stored
in the compartment. If the reason for
the error is removed, the error code
disappears after a pre-determined
period of time.
abnormal
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
inverter PCB. (Check if any parts have
short-circuited).
Comp IPM
Fault Error
Check the Compressor and the Cycle.
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