LG Therma V AHBW Series - Page 83

- 83 -
Display
code
Title Cause of error Check point & Normal condition
43
Sensor error of high
pressure
Abnormal value of sensor
(Open/Short)
• Bad connection of connector PCB(Inverter)
• Bad connection high pressure connector
• Defect of high pressure connector (Open/Short)
• Defect of connector PCB(Inverter) (Open/Short)
• Defect of PCB(Inverter)
Is sensor connected
to PCB(Inverter) correctly?
Connect sensor to PCB correctly
Replace corresponding
pressure sensor
Yes
No
Replace the pressure sensor
Yes
No
No
Yes
END
After replacement of outdoor
unit main PCB(Inverter) is the
system also abnormal?
Is pressure sensor OK?
(Check the value of
pressure sensor.
Cf. Output voltage is about
1.4V at 1500kPa)