54
Installation and Maintenance
Service Manual
Desynchronizing malfunction
occurs during operation process
Check whether
the fan terminal is
connected well
Replace fan capacitor
Replace outdoor fan
Improve the radiation
circumstances for the
unit (such as clean heat
exchanger, improve
ventilation, etc)
Turn on the unit again
after the power voltage
is resumed
Charge refrigerant
according to service
manual
Whether the outdoor fan can
operate normally?
Whether the radiation for the
unit is in good condition?
Whether the input voltage is
normal?
Whether refrigerant is
superfluous?
Replace main board of outdoor
unit
Is malfunction eliminated?
Replace compressor
End
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
