Samsung AC200KNHPKH - E102: Communication Error between Indoor and Outdoor Unit; E201: Unit Quantity Miss Matching Beween Indoor and Outdoor; E203: 1 Min Time out of Communication Error(MainInverter)

4-20 Samsung Electronics
4-3-11 E102 : Communication error between indoor and outdoor unit
E201 : Unit quantity miss matching beween Indoor and Outdoor
E202 : Abnormal state, no communication between Indoor and Outdoor Main PCB
E203 : 1min Time out of communication error(MainInverter)
1. Checklist :
1) Is the communication cable between the indoor unit and outdoor unit connected correctly?
2) Isn’t the power cable and communication cable wiring error?
2. Troubleshooting procedure
Yes
Restart after power off.
Is the communication error
occurred again?
Isn't the power cable and
communication cable wiring error?
Replace the outdoor unit PCB.
Terminate the service.
Correct the wrong wiring.
Is the connection of
communication cable normal?
Correct the connection of
communication cable.
Yes
Yes
No
No
No