Samsung AM036 - Error due to incorrect Indoor Unit Power;Communication Cable Connection

Troubleshooting
4-58 Samsung Electronics
4-4-19 Error due to incorrect Indoor Unit Power/Communication Cable Connection
Indoor unit display
t Apply power (220V) to the terminal of the indoor unit communication block (F1/F2)
Criteria
Cause of problem
t Check for Power input(220V) for the Terminal block(F1/F2).
Outdoor unit display
● Check for disconnected line after turning off the Main power.
(wall mount type)