Liquid Compression Prevention Control - Samsung AM007FN1DCH/AA Service Manual

4-4-78 Liquid Compression Prevention Control

Outdoor Unit Display
Indoor Unit Display -
Judgment Method • SUMP temperature decrease & DSH < 5°C 25 min.
• EVI EEV and super cooler, liquid bypass valve leakage, refrigerant overcharge, indoor unit EEV leakage,
Special Cause
1. Inspection Method
and the discharge sensor are properly
Check the normal EEV operation
Check and change the discharge valve leakage.
Samsung Electronics
direct connection between indoor liquid pipe-gas pipe, faulty main EEV, and failure to operate compressor
Are the SUMP sensor
connected/attached?
Yes
of the main EEV EVI.
Normal
Check the failure in
liquid bypass valve and
4way valve.
Normals
No
Re-check the sensor connection/attachment.
Breakdown
Resolve the relevant EEV problem.
Breakdown
Resolve the relevant valve problem.
Troubleshooting
4-111