Samsung AC018JNHDCH/AA Service Manual page 43

4-2-4 Terminal Block's Terminal Fuse(Open)
Indoor unit display
Wire remote controller display
Symptom
Failure
disconnected from the terminal block and
Remove the wire connector from the PCB
and measure the resistance between two
Replace the PCB and restart the unit
4-8
X (Operation) X (Defrost)
E198
Error of Terminal Block's Terminal Fuse(Open)
Fuse open
Is the wire connector
PCB?(CN140)
No
terminals
Is the resistance 0Ω ?
Yes
(Timer) (Fan) (Filter)
Yes
PCB and terminal block before
No
Replace the Terminal Block and
Connect the connector to
restart the unit
restart the unit
Samsung Electronics