Samsung AM036JNVDKH/EU - Momentary Blackout Error

Troubleshooting
Samsung Electronics 393
Outdoor unit display
Indoor unit display
Criteria
 Momentary stop of compressor due to momentary blackout.
Cause of problem
 Momentary stop of compressor due to momentary blackout.
4-4-69 Momentary Blackout error
1. Precautions : Replace Hub PCB or Main Hub Connection wire.