Samsung AM050KXMDCH/AZ - OLP Temperature Control Error (E463)

Troubleshooting
Samsung Electronics 37
4-3-16 Comp. down due to OLP temperature control (Error Code : E463)
1. How to check
Is resistance
value on OLP sensor normal?
(Refer to E320)
Test operation
Are service valves open?
Do the values of
S-net and Manifold gauge
correspond?
Does indoor/outdoor EEV
operate well?
Is there any clogged place in
the piping (ex. filter)?
Change the OLP sensor
Open the service valve
Replace a high pressure sensor
Check the relevant EEV
Connect S-net and Manifold gauge
(Mandatory)
No
No
No
Yes
Yes
Yes
Yes
No
Check the amount of
refrigerant
Check the piping