Samsung AM080KXMDFH/TC - Page 58

Troubleshooting
4-16 Samsung Electronics
■ Communication error on all PBA within the outdoor unit C-Box, communication cable error.
(E-205)
Outdoor unit Display E-205
Indoor unit Display
Duct, Cassette (1 / 2Way), Console, Ceiling
Operation Defrost Timer Fan Filter / MPI
× ×
◑ ◑
×
Cassette (4Way / Mini 4Way)
Operation Defrost Timer Filter
×
◑
◑ ×
Duct, Cassette (1/2 Way), Console, Ceiling
Operation Timer Turbo 24°C 27°C
× ×
◑ ◑
×
※ ● : ON ◑ : Flash ×: OFF
Judgement Method •CommunicationerrorbetweentheC-BoxPCB.
Cause of problem
•CommunicationwireinsidetheC-Boxisunconnected.
•MainPCBdefective.
Did the communication
connector break away
from the PCB?
Restart operation after connecting the inverter
PCB2 CN31(when the Comp. applied one :
Inverter PCB1) connector. (Check the 3, 4 Pin short)
* When performing the connector work, Please
turn off the main power .
Yes
No
Is inverter PCB CN32
and Fan PCB CN12
connector accurately
connected?
Check the Inverter PCB1 CN32, CN91 and Fan
PCB CN12 Communication wire / Connector .
* When performing the connector work, Please
turn off the main power.
No
Yes
Is FAN PCB LD22, 32
flashes?
Check the Main PCB : Main PCB TX circuit
Inspection
* When performing the connector work, Please
turn off the main power.
No
Replace main PCB