Kaisai ICE Series, Service Manual

Page: 138 / 168

 Troubleshooting 
TS06-INV: 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.
Are any leakages present?
Put your hands in front of the
indoor air outlet.
Is there cool or heat
air blowing out from
indoor air outlet?
Ensure proper connections.
Check system for leakages.
NO
NO
Repair the leakage and
recharge the refrigerant.
YES
NO
Is T2 loose? YES YES
Is T1 too close to
the evaporator
NO
Install correctly YES
Replace the indoor PCB
NO
Charge the refrigerant
appropriately(about 10% of
the nameplate charge)