DOWNLOAD Panasonic CS-BE20TKD / CU-BE20TKD Service Manual ↓ Size: 23.45 MB | Pages: 92 in PDF or view online for FREE

Model
CS-BE20TKD CU-BE20TKD
Pages
92
Size
23.45 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-be20tkd-cu-be20tkd.pdf
Date
PREV: Panasonic PT-VZ575N / PT-VZ575ND / PT-VZ575NT / PT-VW535N / PT-VW535ND / PT-VW535NT / PT-VX605N / PT-VX605ND / PT-VX605NT (serv.man3) Service Manual

Panasonic CS-BE20TKD / CU-BE20TKD Service Manual ▷ View online

57 
15.5.7  H23 (Indoor Pipe Temperature Sensor Abnormality) 
Malfunction Decision Conditions 
  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger 
temperature sensor are used to determine sensor errors. 
 
Malfunction Caused 
 Faulty 
connector 
connection. 
 Faulty 
sensor. 
 Faulty 
PCB. 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
When abnormality indication starts again.
For safety reason and to prevent component 
breakdown, always switch off the power 
before remove and connect the component.
Connector poor contact.
Correct the connection.
Defect in outdoor unit PCB.
Replace the outdoor unit PCB.
Defect in outdoor intake air temperature sensor.
Replace the outdoor intake air temperature 
sensor.
NO
NO
YES
YES
0 
10
-10
10
20
30
40
50
0
20
30
40
50
60
70
Temperature (°C)
Resistance (
kΩ
)
Sensor (Thermistor)
Characteristics
Œ
Œ


Pipe temp. Sensor
Intake Air Temp. Sensor
Check the connector connection:
Plug out connector from the indoor unit PCB.
Is the connector connection normal?
Measure the resistance of the indoor pipe temperature 
sensor.
Check the outdoor air temperature sensor:
Is the measured resistance of the outdoor intake air 
temperature sensor matches the value specified in its 
characteristic chart?
Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor intake air 
temperature sensor.
Caution
58 
15.5.8  H27 (Outdoor Air Temperature Sensor Abnormality) 
Malfunction Decision Conditions 
  During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature 
sensor are used to determine sensor errors. 
 
Malfunction Caused 
 Faulty 
connector 
connection. 
 Faulty 
sensor. 
 Faulty 
PCB. 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
Check the connector connection:
Is the measured resistance of the outdoor air temperature 
sensor matches the value specified in its characteristic 
chart?
Is the connector connection normal?
When abnormality indication starts again.
For safety reason and to prevent component 
breakdown, always switch off the power 
before remove and connect the component.
Turn off the power.
Check the connector connection.
Defect in outdoor air temperature sensor.
Replace the outdoor air temperature sensor.
Defect in outdoor unit PCB.
Replace the outdoor unit PCB.
NO
NO
YES
YES
Check the outdoor air temperature sensor:
Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor air temperature 
sensor.
Connector poor contact.
Correct the connection.
0 
10
-10
10
20
30
40
50
0
20
30
40
50
60
70
Temperature (°C)
Resistance (k
Ω
)
Sensor (Thermistor)
Characteristics
Œ

Œ

Outdoor Air Sensor
Outdoor Heat Exchanger 
Sensor
Caution
59 
15.5.9  H28 (Outdoor Pipe Temperature Sensor Abnormality) 
Malfunction Decision Conditions 
  During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature 
sensor are used to determine sensor errors. 
 
Malfunction Caused 
 Faulty 
connector 
connection. 
 Faulty 
sensor. 
 Faulty 
PCB. 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
Is the measured resistance of the outdoor heat exchanger
temperature sensor matches the value specified in its 
characteristic chart?
Is the connector connection normal?
When abnormality indication starts again.
For safety reason and to prevent
component breakdown, always switch 
off the power before remove and 
connect the component.
No
No
YES
YES
Check the outdoor heat exchanger temperature sensor:
Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor heat exchanger
temperature sensor.
0 
10
-10
10
20
30
40
50
0
20
30
40
50
60
70
Temperature (°C)
Resistance (k
Ω
)
Sensor (Thermistor)
Characteristics
Œ

Œ

Outdoor Air Sensor
Outdoor Heat Exchanger 
Sensor
Check the connector connection:
Turn off the power.
Check the connector connection.
Connector poor contact.
Correct the connection.
Defect in outdoor unit PCB.
Replace the outdoor unit PCB.
Defect in outdoor heat exchanger 
temperature sensor.
Replace the outdoor heat exchanger 
temperature sensor.
Caution
60 
15.5.10  H30 (Compressor Discharge Temperature Sensor Abnormality) 
Malfunction Decision Conditions 
  During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe 
temperature sensor are used to determine sensor errors. 
 
Malfunction Caused 
 Faulty 
connector 
connection. 
 Faulty 
sensor. 
 Faulty 
PCB. 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
When abnormality indication starts again.
For safety reason and to prevent
component breakdown, always switch 
off the power before remove and 
connect the component.
Is the measured resistance of the outdoor discharge pipe 
temperature sensor matches the value specified in its 
characteristic chart?
Is the connector connection normal?
YES
YES
Check the outdoor discharge pipe temperature sensor:
Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.
Check the connector connection:
Turn off the power.
Check the connector connection.
Connector poor contact.
Correct the connection.
Defect in outdoor unit PCB.
Replace the outdoor unit PCB.
Defect in outdoor discharge pipe
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.
NO
NO
Caution
Page of 92
Display

Click on the first or last page to see other CS-BE20TKD / CU-BE20TKD service manuals if exist.

RANDOM: