Samsung RF31FM Series Manual page 137

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5. Check the installation status
5-1. Function for failure diagnosis
* Self-diagnosis CHECK LIST
LED
F R
Comp Abnormal
current Detection
Motor Locked
Over RPM
Comp under
voltage
Comp over
voltage
Sparkling Tank
Overflow
Item Trouble contents
When ther is abnormal crrunt
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
Display error when open error
is detected by sparkling tank
overflow : separation of
Sparkling Tank Overflow
Sensor housing part, contact
error, disconnection, short
circuit.
Diagnostic method
1. When Comp wire is un connected
2. Bad condition of R1 (ex Bad soldering)
3. Other cases, Check the COMP, cycle,
etc
1. Check the COMP. locking
2. Other cases, Check the cycle.
1. Check the Input Voltage
2. Check the Resistor(R309, R310, R311,
R312)
The voltage of ASSY PCB KIT CN30- "1"
CN30-"2":
shall be over 4.5V
To do list
137