Checking flow Result & SVC Action
Damper checking method.
Inputting TEST Mode,
Check the damper and PCB.
(4)
Check the Fan motor.
Rotate fan using your hand.
It feel stuck or locked up, change the
motor.
(Cause of ice or rust inside of motor)
Check the F Fan motor voltage.
(1)Pin8, (2)Pin10, (3)Pin12
<CON7>
1 Mode
2 Mode
1,2
mode
(1)to (2)
(3) to (4)
(1) ~ (2)
(2) ~ (3)
Open
Closed
Damper is normal.
(Check the Damper)
Not
working Change the damper
270 ~330_
Other
270 ~330_
Other
Normal
Change damper
Normal
Change damper
Below 12 V Change the PCB
0 or 5 V Change the motor
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