Samsung AC052MNCDKH Service Manual page 70

4-4-19 E463 : OLP protection control caused comp. down
Outdoor unit display
Criteria
Cause of problem
1. How to check
The sensor's resistance normal?
All the sub valves open?
The outdoor/indoor EEV operates normally?
Clogging in the pipeline?
Check the amount of coolant.
4-36
E463
• OLP SENSOR temp above Trip_Dis.
•See if the sub valve is open.
•Check the amount of coolant.
• Check the OLP sensor.
(Refer to E20.)
Yes
Test operation
Yes
Yes
(ex-filter)
No
No
Replace the OLP sensor
Connect S-net to vacuum. (forceful)
No
Open the sub valve.
No
Check the EEV.
No
Check the pipeline.
Samsung Electronics