When The F Room Compressor(Msv172) Is Not Operating; (F Room Inverter, Lc3-3A) - Samsung RF9000JC Manual

5. Self Diagnosis & Trouble Shooting

5-2. When the F Room Compressor(MSV172) is not operating

(F Room Inverter, LC3-3A)

When the inverter PCB LED is ON,
it indicates that the compressor is
operating normally
Refer to the TEST Function
in this manual
The Forced Operating signal sound
should be checked
0 ~ 8 0 0 H z 5 0 % D uty Sig nal
Output
Check the wire harness Replace
the Main PCB
Replace the Inverter PCB
Start
10 minutes have passed since the
COMP was turned off
When Forced Operating mode is
activated, the COMP operates
Yes
The COMP operating signal (CN103
No
④↔⑥) is High (about DC 2-2.5V)
No
Is DC 15V applied to ZD501?
The COMP Connector (CN04) is Good
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No
Yes
Check after 10 minutes
No
The F-Sensor is Good
Yes
The temperature sensing part
Yes
of the MAIN PBA is Good
Replace the Main PBA or
Yes
Repair the connection
No
Yes
No
Replace the
Yes
F-Sensor.
No
Repair the
Yes sensing part or
Replace the Main
PBA
Check the COMP Wire
Check the Compressor
100