4-10) When The Compressor Does Not Operate - Samsung RS261MD Series Service Manual

4. TROUBLESHOOTING

4-10) When the Compressor does not operate

if Red leD in the
main PbA or inverter
PbA is turned on, it
means comP is
working.
Refer to the Test
function in this
manual
yeS
Forced operation signal
sound should be checked
no
200~400hz 50%
Duty Signal
output
Replace main PbA
no
check the
connector(cn79) contact
Start
Five minutes
have passed since comP
was off
yeS
When Forced
operation mode is activated, comP
operates
no
comp
operation signal (cn79 #4) is high
(about 2 - 2.5V)
yeS
connection
between main & Sub(inverter)
PbA is normal
yeS
comP connector(4pin) is good
yeS
Red leD in the main PbA is on.
yeS
comP ASS'y is good.
yeS
normal
48
no
check in 5 minutes.
yeS
F-Sensor is good.
yeS
Temperature sensing part
of mAin PbA is good.
yeS
Replace mAin PbA
or Repair the
connection
no
check the connector
contacts
no
Replace Sub(inverter)
PbA
no
Replace comP ASS'y
no
Replace
F-Sensor.
no
Repair the sensing
part or Replace PbA