Samsung AC018KN4DCH Service Manual page 87

4-4-16. Full current error / PFC over-current error (Error Code : E462, E484)
1. Test items
1) Check the power connection. / Check the restart after power reset.
2) Install outdoor unit and check environment.
Check for wire disconnection related to outdoor unit Inverter PCB and check the installation environment.
3) Check the indoor unit installation environment.
4) Check the opening of service valve.
2. Check procedure
Power on 30 seconds after power off.
Is the outdoor unit installed properly?
Is the indoor unit installed properly?
Is service valve fully opened?
Is compressor running properly?
After replacing the Inverter PCB of the outdoor unit, check for
normal startup.
Yes
Yes
Yes
Yes
End the service.
Outdoor unit installation and environment check.
Check for normal operation at restart.
service.
1. Check for wire disconnection related to outdoor
No
unit Inverter PCB.
2. Remove obstacle on the inlet of outdoor unit and
secure the space.
3. Remove obstacle on the outlet of outdoor unit and
secure the space.
Check installation environment of indoor unit.
check for normal operation at restart.
No service.
1. Remove obstacle on the inlet and secure the space.
2. Remove obstacle on the outlet and secure the
space.
No
No
4-47
Troubleshooting
End the
End the
Open the valve.
Replace the compressor.