47
15.4 Self-diagnosis
Method
15.4.1
H11 (Indoor/Outdoor Abnormal Communication)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal
transmission is checked whether it is normal.
Malfunction Caused
Faulty indoor unit PCB.
Faulty outdoor unit PCB.
Indoor unit-outdoor unit signal transmission error due to wrong wiring.
Indoor unit-outdoor unit signal transmission error due to breaking of wire in the connection wires between the
indoor and outdoor units.
Indoor unit-outdoor unit signal transmission error due to disturbed power supply waveform.
Troubleshooting
Summary of Contents for CS-E18NKUA
Page 9: ...9 4 Location of Controls and Components 4 1 Indoor Unit 4 2 Outdoor Unit 4 3 Remote Control ...
Page 10: ...10 5 Dimensions 5 1 Indoor Unit ...
Page 11: ...11 5 2 Outdoor Unit ...
Page 12: ...12 6 Refrigeration Cycle Diagram ...
Page 13: ...13 7 Block Diagram ...
Page 14: ...14 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Page 15: ...15 8 2 Outdoor Unit ...
Page 16: ...16 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Page 17: ...17 9 2 Outdoor Unit ...
Page 18: ...18 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 19: ...19 10 1 2 Power Printed Circuit Board 10 1 3 Indicator and Receiver Printed Circuit Board ...
Page 20: ...20 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
Page 21: ...21 10 2 2 Noise Filter Printed Circuit Board ...
Page 45: ...45 15 3 Error Code Table ...
Page 68: ...68 16 1 1 2 To remove discharge grille ...
Page 69: ...69 16 1 1 3 To remove control board 16 1 1 4 To remove cross flow fan and indoor fan motor ...
Page 70: ...70 ...