Samsung AVXC1H022 series Service Manual page 298

I
( for 1
Outdoor unit display
Indoor unit display
Judgment method
Causes
✳
error is removed when the indoor unit power is reset.
1. Check Method
Is the indoor unit that the error is
occurred cassette type?
Is the resistance value?
when measuring the resistance
value on both sides after removing the plot
switch connector that connects to the
indoor unit PCB?
Is the amount of water
which is gathered into the
drain plate much?
Reset the indoor unit power
and check whether the drain
pump is operated normally or not.
Is the drain pump operated?
Is the water level of the drain plate lowered?
Normally operated.
Samsung Electronics
Detection) Detection of Floating Switch of Indoor Unit Drain Pump
st
1 st detection :
2 nd detection:
(Operation)
Refer to the below judgment method
Rise of the water level of the drain plate according to the indoor unit drain pump break or detec-
tion sensor defect
Yes
(OPEN status)
Yes
Yes
Yes
Yes
(Display only outdoor unit)
↔ A*** (*** : Indoor unit address which an error is occurred)
(Timer) (Fan)
No
Solve the problem by referring the
drain pump (optional)
No
Reassemble the plot switch
connector and reset the indoor
and outdoor unit power.
Is the same error
No
occurred again?
Replace the indoor unit PCB.
It causes by plot switch defect ;
thus, replace it and reset the indoor
No
Is the terminal voltage
of the drain pump PCB approximately
AC 220V?
No
Replace the drain pump.
Replace the drain pump.
(Filter) (Defrost)
No
Yes
unit power.
No
Yes
Replace the indoor unit
Troubleshooting
Normally operated.
PCB.
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