DOWNLOAD Panasonic CS-CE9JKE / CU-CE9JKE / CS-CE12JKE / CU-CE12JKE Service Manual ↓ Size: 5.8 MB | Pages: 84 in PDF or view online for FREE

Model
CS-CE9JKE CU-CE9JKE CS-CE12JKE CU-CE12JKE
Pages
84
Size
5.8 MB
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Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-ce9jke-cu-ce9jke-cs-ce12jke-cu-ce12jke.pdf
Date
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45
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
46
15.4.2.
H14 (Indoor Intake Air Temperature Sensor Abnormality)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are
used to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty PCB.
Troubleshooting
47
15.4.3.
H15 (Compressor Temperature Sensor Abnormality)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor
are used to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty  PCB.
Troubleshooting
48
15.4.4.
H16 (Outdoor Current Transformer Open Circuit)
Malfunction Decision Conditions
A current transformer (CT) is detected by checking the compressor running frequency (  rated frequency) and CT detected
input current (less than 0.65A) for continuously 20 seconds.
Malfunction Caused
• CT defective
• Outdoor PCB defective
• Compressor defective (low compression)
Troubleshooting
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