Sequence Of Trouble Shooting For Inverter Aircon - Samsung SH09BWHA Service Manual

6-3 Sequence of trouble shooting for inverter aircon

OPERATION START
• The indoor unit does not work even
though the power is plugged.
• There in no sound "DING"
• The lamp is not on the display.
The indoor unit does not work when
operated by the remote control.
The lamp of the indoor display is
flickering and indoor unit stops
several minutes after the indoor unit
stars.
Timer( ) lamp flickering
Operation( ), Timer(
Turbo( ) lamp flickering
Timer( ), Turbo(
Operation( ), Turbo(
Operation( ), Turbo(
Samsung Electronics
→ Check of the indoor temperature sensor (D)
→ Check of the indoor heat exchanger (D)
) lamp flickering
→ Check of indoor unit fan motor (E)
→ Check the lines of the indoor and outdoor
) lamp flickering
communication (F)
→ Check of the outdoor unit temperature sensor
) lamp flickering
: Discharge temperature sensor (G)
: Comp top OLP temperature sensor (G)
: Deice temperature sensor (H)
: Outdoor temperature sensor (H)
→ Check of the outdoor unit error mode display
) lamp flickering
: (I) – (R)
Check the indoor unit control board. (A)
Checking the remote control.(B)
Check the control board and display board
of indoor unit.(C)
Check the error mode by confirming the
lamp flickering of indoor unit display.
Check the indoor unit
Check the
communication line
Check the outdoor unit
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