Troubleshooting
Samsung Electronics
4-81
1. How to check
1) Check the 3-phase detection part power on the PCB of outdoor unit
2) The color of wire is red, white, and black for 3-phase detection part, respectively. (Please be careful not to mix the colors or order)
4-3-43 3 Detection of phase negative voltage sequence, Phase fail
×
(Operation)
◑
(Timer)
◑
(Fan)
◑
(Filter)
×
(Defrost)
• 3-phase power L1(R), L2(S), L3(T) wire-breaking error
• Missing input of 3-phase power
• When comparing the order of the wave form of the 3 phase detection circuit, there is mixed order or a failure
to have one or all of phase power (When phase power is back to normal , E425 is automatically released)
Indoor unit display
Criteria
Cause of problem
Outdoor unit display
Check the power for key parts
Is the power for
red-white/white-black/red-black wires
of CN82 about AC 380V?
Turn off the power breaker then exchange
2 of the three lines of 3-phase power fuse
then check again.
Does
error occur again?
As it is due to the problem with 3-phase
detection circuit part, replace the PCB.
Start measuring from the
power fuse of the 3-phase power to
locate the problem either in power line
or breaker and take appropriate steps.
As the mixed 3-phase lines in the power
fuse is corrected, it will operate normally.
No
No
Yes
Yes
Summary of Contents for AVXCSH023/032/040CE
Page 114: ...0 02 Samsung Electronics 4 30...
Page 232: ...0 02 Samsung Electronics 5 20...
Page 250: ...0 02 Samsung Electronics 5 38...
Page 262: ...0 02 Samsung Electronics 5 50...
Page 263: ...5 51 Samsung Electronics 5 2 Outdoor Unit 5 2 1 RVXVHT075 100FE RD075 100VHXFA...
Page 264: ...Exploded Views and Parts List Samsung Electronics 5 52 RVXVHT075 100FE RD075 100VHXFA cont...
Page 267: ...Exploded Views and Parts List 5 55 Samsung Electronics 5 2 2 RVXVHT125FE RD125VHXFA...
Page 268: ...Exploded Views and Parts List Samsung Electronics 5 56 RVXVHT125FE RD125VHXFA cont...
Page 279: ...Exploded Views and Parts List 5 67 Samsung Electronics 5 2 5 RD040 050MHXCA...
Page 285: ...PCB Diagram 6 5 Samsung Electronics 6 1 4 Duct type Slim MAIN PCB...
Page 288: ...0 02 Samsung Electronics 6 8...
Page 289: ...PCB Diagram 6 9 Samsung Electronics 6 1 5 Duct type MSP MAIN PCB...
Page 291: ...PCB Diagram 6 11 Samsung Electronics 6 1 6 Duct type BIG MAIN PCB...
Page 295: ...PCB Diagram 6 15 Samsung Electronics 6 1 7 Wall mounted type Neo Forte without EEV MAIN PCB...
Page 298: ...0 02 Samsung Electronics 6 18...
Page 299: ...PCB Diagram 6 19 Samsung Electronics 6 1 8 Wall mounted type Neo Forte with EEV MAIN...
Page 302: ...0 02 Samsung Electronics 6 22...
Page 303: ...PCB Diagram 6 23 Samsung Electronics 6 1 9 Wall mounted type Vivace MAIN PCB...
Page 332: ...0 02 Samsung Electronics 7 16...