Samsung AQ30C2BC Service Manual page 10

3-2-2 When the Indoor Unit Fan Does Not Operate. (Initial Diagnosis)
1) Checklist :
(1) Is the indoor unit fan motor properly connected with the connector (CN73)?
(2) Is the AC voltage correct?
(3) Is HALL IC in indoor fan motor properly connected with the connector (CN43)?
(4) Is the running capacitor properly connected with the solder part of the PCB?
2) Troubleshooting procedure
After unplugging out the power cord should
be reconnected within five seconds.
YES
Does the operating lamp blink?
YES
Does the Solid State Relay(SS71)
work properly?
Test rod location
+ -
SS71-
SS71+
YES
Is the supply voltage of the fan
motor sufficient?
Test rod location
Condition
PCB CN73
Fan operate
pin3, pin5
YES
All manuals and user guides at all-guides.com
NO
NO
Normal
Voltage
12V
NO
Normal
voltage
.
= AC 180V
.
Fan motor
is out of order.
Check as in the procedur "NO power parts"
Refer to page 8.
Microcomputer is out of order.
Refer to replace
PCB is
PCB module
out of order.
MF-C is out of order
should be replaced.
Replace MFC
Fan motor
9