Troubleshooting
Samsung Electronics
53
3-20 DC-Link voltage under/over error (Error Code : E466)
1. Check items
1) Check the power and restarting after power reset
o
Is there any problem with input power?
(1 Phase: 220Vac, 3 Phase: 380Vac)
o
Does error occur again during operation after power reset?
2) Check the power cable connection, and joint cable connection
3) Check the reactor and reactor wire
4) Check the fuse on the EMI PBA
5) Check the Terminal block, power terminal cabinet and the power wire assembly
2. Check procedure
Yes
Re-connect the power cable
No
Is the power cable connected properly?
1. Correctly connect the wire between the reactor
l
outdoor unit inverter PBA
o
Check for
normal operation
o
End service
2. Change the reactor
o
Check for normal operation
o
End service
No
Turn off the power
[Check list for AM0
✳✳✳
XMDGH series]
[Common: Power joint connection failure]
[Check list for AM0
✳✳✳
XMDGH series]
[Check list for AM0
✳✳✳
XMDEH
series]
Yes
Cont.
Check the reactor and
reactor wire connection
1. Is wire connection between the reactor
l
outdoor unit inverter PBA normal?
2. Is there any problem on reactor coil?
(such as scratch/pressed/
broken terminal/loose
terminal)
