Samsung Electronics 4-33
Indoor unit display 1way
AC666JB1DEC6 except
AC
666
MN1DKH
6
except
X (Operation)
X (Defrost)
(Reservation)
(Fan)
(Filter)
Symptom
Thermal Fuse Open Error
Failure
Check the connection of the CN140 wire.
Check the connection of the terminal block.
(Temperature rise by untightening a screw/ Termal Fuse open)
4-4-7 Thermal Fuse Open Error
E198 occurs.
Measure both ends of connector
connected the TERMINAL BLOCK.
Replace the MAIN PBA.
No
No
Yes
Is the CN140 connector of
PCB between wire correctly
connected?
Paragraph (Short) Has the connector ends?
Re-operation after the connector.
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