Troubleshooting
Samsung Electronics
4-19
4-3-12 E463 : OLP protection control caused comp. down
Outdoor unit display
E463
Criteria
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Cause of problem
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t$IFDLUIFBNPVOUPGDPPMBOU
t$IFDLUIF0-1TFOTPS
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.