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16.4.21 F90 (Power Factor Correction Protection)
Malfunction Decision Conditions
During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at
the outdoor unit main PCB senses abnormal high DC voltage level.
Malfunction Caused
DC voltage peak due to power supply surge.
DC voltage peak due to compressor windings not uniform.
Faulty outdoor PCB.
Troubleshooting
Summary of Contents for CS-E12NKEW
Page 21: ...21 Outdoor Unit CU 2E15LBE Outdoor Unit CU 2E18LBE ...
Page 22: ...22 Outdoor Unit CU 3E18LBE ...
Page 23: ...23 Outdoor Unit CU 4E23LBE ...
Page 24: ...24 ...
Page 25: ...25 Outdoor Unit CU 4E27CBPG ...
Page 26: ...26 ...
Page 28: ...28 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...
Page 30: ...30 5 1 2 CS E18NK CS E21NK CS XE18NK CS XE21NK ...
Page 32: ...32 5 2 3 CU E18NKE CU E21NKE ...
Page 33: ...33 6 Refrigeration Cycle Diagram 6 1 CU E7NKE CU E9NKE CU E12NKE CU E15NKE ...
Page 34: ...34 6 2 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Page 35: ...35 6 3 CU E18NKE ...
Page 36: ...36 6 4 CU E21NKE ...
Page 37: ...37 7 Block Diagram 7 1 CU E7NKE CU E9NKE ...
Page 38: ...38 7 2 CU E12NKE ...
Page 39: ...39 7 3 CU E15NKE ...
Page 40: ...40 7 4 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Page 41: ...41 7 5 CU E18NKE CU E21NKE ...
Page 42: ...42 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Page 43: ...43 8 2 Outdoor Unit 8 2 1 CU E7NKE CU E9NKE ...
Page 44: ...44 8 2 2 CU E12NKE ...
Page 45: ...45 8 2 3 CU E15NKE ...
Page 46: ...46 8 2 4 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Page 47: ...47 8 2 5 CU E18NKE CU E21NKE ...
Page 48: ...48 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Page 49: ...49 9 2 Outdoor Unit 9 2 1 CU E7NKE CU E9NKE ...
Page 50: ...50 9 2 2 CU E12NKE ...
Page 51: ...51 9 2 3 CU E15NKE ...
Page 52: ...52 9 2 4 CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Page 53: ...53 9 2 5 CU E18NKE CU E21NKE ...
Page 54: ...54 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 56: ...56 10 1 5 Human Activity Sensor Printed Circuit Board ...
Page 57: ...57 10 2 Outdoor Unit 10 2 1 CU E7NKE CU E9NKE CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 ...
Page 58: ...58 10 2 2 CU E12NKE CU E15NKE ...
Page 59: ...59 10 2 3 CU E18NKE CU E21NKE ...
Page 96: ...96 16 3 Error Codes Table ...
Page 97: ...97 ...
Page 127: ...127 17 1 1 3 To remove discharge grille ...
Page 128: ...128 17 1 1 4 To remove control board 17 1 1 5 To remove cross flow fan and indoor fan motor ...
Page 129: ...129 ...
Page 131: ...131 17 2 1 3 To remove power electronic controller ...
Page 133: ...133 ...