Troubleshooting
98
Samsung Electronics
4-5
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1. Check items
1) Is the power supply voltage 380V?
2) Is the AC power connected correctly?
3) Are the LEDs in the main PCB and inverter PCB of the outdoor unit ON?
4) Is the input power voltage of the indoor unit 220V?
5) Is the wired remote controller connected correctly?
2. Check procedure
Yes
Turn o he main power switch
(circuit break of power outlet) and turn on
again after 30 seconds.
Check the input power
No
Is the outdoor unit power
supply (N-R, N-S, N-T) 220Vac?
Yes
Check connection of the outdoor unit
terminal block
No
Is the outdoor unit power
voltage (L-N) 220Vac?
Yes
Check the connection wires and
connectors of the indoor and outdoor units
No
Is the indoor unit power supply
voltage (L-N) 220Vac?
Yes
Exchange the wired remote controller
No
Does the air conditioner
operate when pressing ON/OFF button of the
wired remote controller?
Yes
the option DIP switches
No
Are the option DIP switches
inside the wired remote controller co
ured
correctly?
No
Check the system depending
on the error display
Yes
Is there an error
message displayed on the wired remote
controller display?
Check the target temperature
4-5-11 Outdoor unit is not powerde on - Intial diagnosis
