5-3 Sequence of trouble shooting for inverter aircon
OPERATION START
. The indoor unit does not work
even though the power is plugged. Check the indoor unit control board. (A)
. There is no sound ODING�
. The lamp is not on the display.
The indoor unit does not work when Checking the Remocon. (B)
operated by the remocon.
Check the control board and the display
board of indoor unit.(C)
The lamp of the indoor display is flick-Check the error mode by confirming the
ering and the indoor unit stops severallamp flickering of indoor unit display.(D~0)
minutes after the indoor unit starts.
Timer lamp( ) flickering-> Check of the indoor temperature sensor (D)Check the indoor unit
Standard( ), Timer( ) lamp flickering -> Check of the indoor heat exchanger (E)
Nature( ) lamp flickering-> Check of indoor unit fan motor (F)
Timer( ), Nature( ) lamp flickering-> Check the lines of the indoor and outdoor Check of the
communication (G)Communication line
Standard( ), Nature ( ) lamp flickering -> Check of the outdoor unit temperature sensor
: Discharge temperature sensor (H)
: Comp top OLP temperature sensor (I)
: Deice temperature sensor (J)
: Outdoor temperature sensor (K)
: Heatsink temperature sensor (L)Check of the Outdoor unit
POWER( ) flickering-> Check of the abnormal increase protection
of the operation Current (M)
Timer( ), POWER( ) lamp-> Check of the instantaneous over-current protection
flickeringmode of IPM circuit (N)
Nature( ), POWER lamp( ) -> Check the abnormal increase of the comp
flickeringdischarge gas temperature and OLP protection
mode.(O)
5-4Samsung Electronics |