Samsung AC035JNMCEH Service Manual page 36

4-5 Fault Diagnosis by Symptom
4-5-1 No Power(completely dead) - Initial diagnosis
1. Checklist:
1) Is Power source voltage normal?
2) Is AC power linked correctly?( miss-wiring, wire detaching etc. )
3) Is any LED on the MAIN PCB of Outdoor unit lit?
4) Is terminal voltage for indoor unit normal?(230Vac nominal)
5) Is Wired remote controller installed correctly?
2. Troubleshooting procedure
Turn off the breaker and turn it on after 30 seconds
Check outdoor unit terminal
block voltage on each N-R,N-S,N-T
Check outdoor unit terminal
block voltage on L-N for indoor unit
terminal block voltage on L-N
terminal block voltage on V1-V2
Check DC power voltage of
remote controller(V1,V2)
Press the On/Off button on the
wired remote controller to operate the air
Check DIP SW in the
wired remote controller.
Is there any error display on
the wired remote controller
Check the setting temperature
4-10
(230Vac nominal)
Normal
(230Vac nominal)
Normal
Check indoor unit
(230Vac nominal)
Normal
Check indoor unit
(12Vdc nominal)
Normal
Normal
conditioner
No display
Correct
No
Abnormal
Abnormal
Check Inner wiring of outdoor unit
Abnormal
Check cable and connection of wire between
Abnormal
PCB, Transformer, and FUSE on PCB and
replace one which is broken.
Abnormal
Check cable and connection of wire between
remote controller and indoor unit
No display
Replace wired remote controller
Wrong setting
Yes
Check each item according to error code list
Check AC power source.
Reconnect wires correctly
indoor and outdoor unit
Check Indoor control
Set DIP SW correctly
Samsung Electronics