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14.4.14 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)
Malfunction Decision Conditions
•
Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C)
Malfunction Caused
•
Clogged air filter of the indoor unit
•
Dust accumulation on the indoor unit heat exchanger
•
Air short circuit
•
Detection error due to faulty indoor pipe temperature sensor
•
Detection error due to faulty indoor unit PCB
Troubleshooting
When abnormality indication starts again
Is the air filter dirty?
•
Clean the air filter
Check the air filter
Is the indoor unit heat exchanger dirty?
•
Clean the indoor unit heat
exchanger
Is there any short circuit?
Check the air passage
YES
•
Provide sufficient air passage
NO
Does it conform to the sensor characteristic chart?
Check the indoor heat exchanger temperature
sensor
•
Replace the indoor unit PCB
•
Defect in indoor unit PCB
•
Replace the indoor unit PCB
Check the dust accumulation on the indoor unit heat
exchanger
NO
NO
YES
YES
YES
NO
Содержание CS-PS9JKT
Страница 7: ...7 3 Location of Controls and Components 3 1 Indoor Unit 3 2 Outdoor Unit 3 3 Remote Control...
Страница 8: ...8 4 Dimensions 4 1 Indoor Unit...
Страница 10: ...10 5 Refrigeration Cycle Diagram...
Страница 11: ...11 6 Block Diagram 6 1 CS PS9JKT CU PS9JKT...
Страница 12: ...12 6 2 CS PS12JKT CU PS12JKT...
Страница 13: ...13 7 Wiring Connection Diagram 7 1 Indoor Unit...
Страница 14: ...14 7 2 Outdoor Unit 7 2 1 CU PS9JKT...
Страница 15: ...15 7 2 2 CU PS12JKT...
Страница 16: ...16 8 Electronic Circuit Diagram 8 1 Indoor Unit...
Страница 17: ...17 8 2 Outdoor Unit 8 2 1 CU PS9JKT...
Страница 18: ...18 8 2 2 CU PS12JKT...
Страница 21: ...21 9 2 Outdoor Unit 9 3 Main Printed Circuit Board 9 3 1 CU PS9JKT...
Страница 22: ...22...
Страница 23: ...23 9 3 2 CU PS12JKT...