Panasonic CS-E7PKEW - Specific Error Code Diagnosis Procedures

111
17.4 Self-diagnosis Method
17.4.1 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 wiring error.
• Indoor unit-outdoor unit signal transmission error due to breaking of wire in the connection wires between the
indoor and outdoor units.
Troubleshooting