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Troubleshooting
Basic Check Flow(cont.)
Preparation : multimeter (AC voltage, DC voltage, Resistance)
• Cable wiring between indoor and outdoor
• Communication wire socket check on
outdoor unit controller PCB
• Cycle check
• Pipe matching
Each indoor unit operation mode
Consult LED pattern on wiring diagram on
outdoor controller
No
No
No
No
Is the error code related to
cycle protection ?
Are some of the indoor units’
operation mode (cooling/heating)
different from others ?
Error related to outdoor controller except
temperature sensor and communication
between indoor unit and outdoor unit ?
See Error Code Table and Check
“Main checking point”
Is the error code related to
communication ?
Consult Error Code
Check point
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Samsung Electronics 9-13