69
4. Troubleshooting
Failure Display Codes
Information code
Meaning
Solution
C-A2
BLDC motor operation
information
1 . Check the display for location code .
upper : Cooling motor information
lower : Air intake motor information
2 . Check connection of the wire harness
3 . Check the voltage of CN200(PIN 1-3, 4-6)
Proper voltage range : 10VDC ~ 14VDC
* Upper : Cooling motor
* Lower : Air intake motor
** Operate Self Clean
(Within 2min .)
END
“C-A2”
Start Self Clean
Change BLDC motor
Check displayed
information after 2 min of running
self clean .
Is the wire harness connected ?
**Check voltage
BLDC Fan PCB
Proper voltage range : 10VDC ~ 14VDC
Cooling FAN : PIN 5~7
Air Intake motor : PIN 1~4
Yes
Yes
Connect to wire
harness connectors
Change Main PBA
Change BLDC Fan PCB
1
2
No
No
No
Yes