3-
1
CV10CTX
Energize and turn on
the unit
Indoor unit display
F1-F2 ?
Check the connection
status of indoor tem-
perature sensor
Indoor unit displays
F3/F4/F5
whether it's
connected tightly?
Check the connection
status of outdoor
temperature sensor
Whether it's
connected tightly?
Replace temperature
sensor
Is malfunction
eliminated?
Adjust the connection
status
Is malfunction
eliminated?
Is malfunction
eliminated?
Replace main board
of indoor unit
Replace temperature
sensor
Is malfunction
eliminated?
Replace main board
of outdoor unit
Energize and turn on
the unit
yes
yes
yes
yes
no
no
no
no
no
no
no
Adjust the
connection status
1. Failure for Temperature Sensor
Main test point:
● If the outdoor environment temperature is in normal range
● If fan motor normally runs.
● If the radiating environment of indoor and outdoor unit is good
Check the flow process of failure is:
CHAPTER 3. TROUBLESHOOTING GUIDE
[1] TROUBLESHOOTING