Service Manual 163
Troubleshooting Guide
Low pressure sen-
sor error
Error
Code
Error Contents Meaning Main Causes
Error display
position
42
Sensor measured value is
not normal
(Open / Short)
Concerned
Remote con-
troller
Panel Display
Outdoor unit
1. Defective low pressure sensor con-
nector
2. Defective low pressure sensor
(Open/Short)
3. Defective outdoor PCB
High pressure
sensor error
Error
Code
Error Contents Meaning Main Causes
Error display
position
43
Sensor measured value is
not normal (Open/Short)
Concerned
Remote con-
troller
Panel Display
Outdoor unit
1. Defective high pressure sensor
connector
2. Defective high pressure sensor
error (Open/Short)
3. Outdoor PCB defect
■ Defect inspection method
1) Check the pressure sensor connecting condition and lead wire connecting condition.
2) In case the above condition is normal then replace the outdoor PCB .
3) If the error code persists even after the replacement of PCB then replace the concerned pressure sensor
To Next Page
Loading...
