Samsung AC140KNPDEH - E463: OLP Protection Control Caused Comp. down

Troubleshooting
Samsung Electronics 4-19
4-3-12 E463 : OLP protection control caused comp. down
Outdoor unit display E463
Criteria
t0-14&/403UFNQBCPWF5SJQ@%JT
Cause of problem
t4FFJGUIFTVCWBMWFJTPQFO
t$IFDLUIFBNPVOUPGDPPMBOU
t$IFDLUIF0-1TFOTPS
1. How to check
No
No
No
No
No
Yes
Yes
Yes
Check the amount of coolant.
The sensor's resistance normal?
(Refer to E20.)
The outdoor/indoor EEV operates normally?
All the sub valves open?
Clogging in the pipeline?
(ex-filter)
Test operation
Replace the OLP sensor
Connect S-net to vacuum. (forceful)
Open the sub valve.
Check the EEV.
Check the pipeline.