Troubleshooting
Samsung Electronics
4-59
4-4-4. Indoor Fan error (E154)
Check the normal operation.
No
Is the motor connector(CN73)
disconnected from the PCB?
Connect the connector to PCB
Yes
No
Does the motor rotates
when operating?
Motor
③↔⑤
:
Is voltage of DC 0V~DC 6V displayed?
Check the PCB and replace it.
Is the RPM of motor less than 120?
Yes
During operation or
Operation at the beginning : E154 is displayed.
No
Check the motor and replace it.
Ex) Depending on FAN RPM,
voltage of DC 0V~DC 6V is output.
↓
↓
↓
↓
1 2 3 4 5
1 2 3 4 5
66
Yes
Display
Outdoor Unit display
E154
Wired remote Control, Wind Free RAC
E154
Duct, 1way Cassette
4way Cassette,
4way Cassette(600x600)
MAX4
Console
360 Cassette
or
or
or
RED ● ↔ BLU ●
Duct
Blue
Red
1way
Blue Yellow
X
X
X
◑
X
X
X
◑
X
X
X
◑
X
◑
X
X
X
Judgment
method
Refer to checking method, as shown below
Symtom
If the motor connector break away / Indoor unit Fan does not operate by motor or PBA defectiveness.