Samsung AC009BN1DCH, Руководство по обслуживанию, Страница: 259 / 330

Troubleshooting
Samsung Electronics 4-65
4-4-9. Indoor/outdoor communication error (2min.) (Error Code : E202)
Yes
End the service.
No
Does communication error occurs?
Check the communication wire and power wire connection.
1. Are the communication wire connections correctly assembled as
F1 : Red, and F2 : Blue?
2. Is the communication wire between the indoor unit and the
outdoor unit correctly connected?
3. Are the power connections (1(L), 2(N)) and the communication
connections (F1, F2) correctly connected?
4. Are the power wire [1(L), 2(N)] correctly assembled?
(Refer to the electrical schematics and the power failure as
explained above.)
No
Yes
Replace the Main PCB of the outdoor unit.
No
Yes
Power on 30 seconds after power off.
Reconnect the
communication connector.
No
Yes
Check the communication
circuit of the Main PCB of the outdoor unit.
1. Is there a fault in communication IC?
2. Is there a fault in TVS-Diode?
Are the power wire and communication
wire correctly connected?
Check the connection of
the communication connector (CN31) of the Main PCB.
1. Is the communication wire between the indoor unit and
the outdoor unit correctly connected?
2. Are the power wire (1(L), 2(N)) and the communication wire (F1, F2) correctly connected?
3. Are the power wire (1(L), 2(N)) correctly assembled?
(Refer to the electrical schematics and the power
failure as explained above.)
Check the communication circuit of the Main PCB of the outdoor unit.
1. Is there a fault in communication IC?
2. Is there a fault in TVS-Diode?
Display
Outdoor Unit display E202
Wired remote Control, Wind Free RAC
E202
Duct, 1way Cassette
4way Cassette,
4way Cassette(600x600)
MAX4 Console 360 Cassette
or
or
or
GRN
◑
Duct
Blue Red
1way
Blue Yellow
X X
◑ ◑
X X
◑ ◑
X X
◑ ◑
X
◑ ◑
X X
Judgment
method
Refer to checking method, as shown below
Symtom Communication error between the indoor and outdoor unit for two minutes