Fault diagnosis and Trouble shooting guide
Trouble shooting Flow
Confirm the connection between PCB
and temperature sensor
No
Reconnect the unplugged
sensor to correct position
Check the indoor
unit PCB
No
Replace the sensor
The state of sensor
connection is normal?
Unplug the sensor and estimate the
resistance of the sensor
The resistance of the
sensor is normal?
• Refer to Temperature resistance Table in appendix
Yes
Yes
Title
Display
code
Cause of errorMeaning
Indoor unit sensor(air)
01
• The temperature sensor unplugged
• The sensor may be open or short
• Indoor unit PCB may be poor
It is occurred that the
temperature sensor may
detect abnormal value
Indoor unit sensor
(inlet pipe)
02
Indoor unit sensor
(outlet pipe)
06
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