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4-2-6 float switch(Open)
Indoor unit display
Wire remote controller display
Symptom
Failure
disconnected from the PCB?(CN411)
Remove the wire connector from the PCB
and measure the resistance between two
Replace the PCB and restart the unit
4-10
X (Operation)
X (Defrost)
E153
2nd Detection of the float switch
Float switch open
Is the wire connector
No
terminals
Is the resistance 0Ω ?
Yes
X (Timer)
(Fan)
(Filter)
Yes
No
Replace the float switch and
Connect the connector to PCB
restart the unit
restart the unit
Samsung Electronics
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Troubleshooting
