Samsung RB37A52N0SA [78/101] Troubleshooting

Samsung RB37A52N0SA [78/101] Troubleshooting
78
4. TROUBLESHOOTING
4-2-14) When Cool Select Zone Damper does not work (Applies only to models with CSZ)
Start
* Note ; Its operations can change
based on its functions.
MICOM & CSZ DAMPER STATE
MICOM
DAMPER
30 31 32 Remark
CLOSE 5V 0V 0V
...ING 0V - 5V
OPEN 5V 5V 0V
DAMPER is under a
working condition.
MAIN PCB Connector
CN75 is inserted normal
CSZ temp satisfies the
set temp.
Voltage is output from
MICOM Pin #30,#31 and #32
DAMPER is normal
Shift Set Temp
[Set lower than the current temp]
Normal
Replace PCB MAIN
Forced Operation, Temp Increased
Check Connector CN75
Check Wiring & PCB MAIN
Check Cold Solder, Replace PCB
Replace DAMPER
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes

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