El 0C (Refrigerant Leakage Detection Diagnosis And Solution) - Mars Comfort-Aire Century VCD-SA Series Service Manual

Service Manual - VCDxxSA
7.5

EL 0C (Refrigerant Leakage Detection Diagnosis and Solution)

Description:
Judging the abnormality of the refrigeration system according to the number of compressor stops and the changes in
operating parameters caused by excessive exhaust temperature.
Recommended parts to prepare:
• Indoor PCB
• Additional refrigerant
Troubleshooting and repair:
Power off, then restart the unit 15 minutes later.
Put your hands in front of the
Check system for leakages.
Are any leakages present?
Charge the refrigerant
appropriately(about 10% of
the nameplate charge)
indoor air outlet.
Is there cool or heat
air blowing out from
indoor air outlet?
NO
NO
NO
 Troubleshooting 28
YES Is T2 loose?
NO
Is T1 too close to
the evaporator
NO
Replace the indoor PCB
Repair the leakage and
YES
recharge the refrigerant.

YES Ensure proper connections.
YES Install correctly