4-2-14) When Csz Room Damper Does Not Work - Samsung RL60GG Series Service Manual

4. TROUBLESHOOTING

4-2-14) When CSZ Room Damper does not work

MICOM & CSZ DAMPER STATE
MICOM
48 47 46
DAMPER
CLOSE 5V 0V 0V
...ING 0V - 5V
OPEN 5V 5V 0V
* Note
Its operations can change based on
its functions.
DAMPER is under a
working condition.
CSZ temp satisfies the
Shift Set Temp
[Set lower than the current temp]
MAIN PCB Connector CN75
is inserted normal
Remark
Voltage is output from
MICOM Pin #46,47,48
DAMPER is normal
Replace PCB MAIN
Start
No
Yes
No
set temp
Yes
No
Yes
No
Yes
No
Yes
Normal
68
Forced Operation, Temp Increased
Check Wiring & PCB MAIN
Check Connector CN75
Check Cold Solder, Replace PCB
Replace DAMPER