Samsung AC026FBRDEH - DC Link and Over;Lower Voltage Error

4-18 Samsung Electronics
4-3-7 DC link and over/lower voltage error
1. Inspection items
1) Is compressor operating properly?
2) Is there a connection between input power and power?
2. Inspection order
Yes
Replace PCB
Turn off the power then reconnect
No
Is EMI PCB and
Inverter PCB connected
properly?