Panasonic CS-E12NKEW Service Manual

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16.4 Self-diagnosis Method
16.4.1 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

Panasonic CS-E12NKEW Specifications

General

Type	Air conditioner indoor unit
Built-in display	No
Remotely operated	Yes
Cooling capacity (max)	- BTU/h
Air conditioner functions	cooling, heating
Cooling capacity in watts (max)	3500 W
Heating capacity in watts (max)	4400 W
Cooling energy efficiency (EER, W/W)	3.87
Heating energy efficiency (COP, W/W)	4.04
Indoor unit type	Wall-mountable
Indoor units quantity	1
Outdoor units quantity	0
Noise level (low speed)	20 dB
Noise level (high speed)	42 dB
Noise level (medium speed)	28 dB
Power requirements	AC 230 V

Weight and Dimensions

Dimensions (WxDxH)	870 x 214 x 290 mm