DOWNLOAD Panasonic CS-HE9MKD / CU-HE9MKD / CS-HE12MKD / CU-HE12MKD Service Manual ↓ Size: 15.22 MB | Pages: 107 in PDF or view online for FREE

Model
CS-HE9MKD CU-HE9MKD CS-HE12MKD CU-HE12MKD
Pages
107
Size
15.22 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-he9mkd-cu-he9mkd-cs-he12mkd-cu-he12mkd.pdf
Date

Panasonic CS-HE9MKD / CU-HE9MKD / CS-HE12MKD / CU-HE12MKD Service Manual ▷ View online

61
15.4.3. 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
62
15.4.4. 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
63
15.4.5. 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
64
15.4.6. H19 (Indoor Fan Motor - DC Motor Mechanism Locked)
Malfunction Decision Conditions
The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of
rotation > 2550rpm or < 50rpm)
Malfunction Caused
• Operation stops due to short circuit inside the fan motor winding.
• Operation stops due to breaking of wire inside the fan motor.
• Operation stops due to breaking of fan motor lead wires.
• Operation stops due to Hall IC malfunction.
• Operation error due to faulty indoor unit PCB.
Troubleshooting
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