78
TROUBLESHOOTING
- This refrigerator uses the BLDC Fan Motor.
- The BLDC Motor operates with DC 7~12V.
- The C-Fan motor generally runs together with the compressor.
The Compressor is Off.
It reads DC7~12 between
MAIN PCB GND and CN30 #2.
Start
Run Forced Operation
FAN operates.
Replace MAIN PCB
Yes
Yes
No
No
Yes
Yes
Upon the initial power on, the
compressor and the C-Fan operate.
And, this function starts operating
when the compressor is about to run
right after an instant power outage.
Apply power in 7 minutes after turning
the motor off.
(To prevent the compressor from being
overloaded)
◆ Possible Causes
①
Defective FAN-MOTOR
②
Contact problem at the terminal
(MAIN PCB CONNECTOR-TERMINAL (CN30 #1,#2,#3),
Contact problem at C-Fan Motor Connector, Defective
Motor Wire)
③
Check the motor rotating pulse input upon Fan Motor
operation. (Refer to Fan-Motor Circuit in this manual)
No
No
◆Note : C-FAN Operations by Ambient Temperature
1. 29℃/84°F or higher : Turns on after a 10 minute
pause when the Compressor starts operating.
2. 18℃/64°F~28℃/82°F : Turns on immediately
when the Compressor starts operating.
3. 18℃/64°F or higher : Turns off after a minute
when the Compressor stops operating.
4. 17℃/62°F or lower : Turns on when the
Compressor starts operating. (But, the C-FAN
turns on when the C-FAN is detected as bein g
ristricted for an hour continually).
5. 17℃/62°F or lower : Turns off (for up to 150
minutes) when the Compressor stops operating.
Does it read DC7~12V
(between MAIN PCB GND and CN30 #2)
and lower than DC 2V
(between MAIN PCB GND and
CN30 #1)?
4-10) When the C-Fan does not operate (Applies to Models with C-Fan)
- 2 BOARD
▶ When checking with the Self Diagnosis
ERROR CODE
Содержание RR39M7 Series
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