20
Problem
Check items Solution
Odors are 
emitted
● Whether there’s odour source,
such as furniture and cigarette,
etc.
● Eliminate the odour source.
Air conditio-
ner operates 
abnormally
● Whether there’s interference,
such as thunder, wireless
devices, etc.
● Disconnect power, put back
power, and then turn on the
unit again.
Outdoor 
unit has 
vapor
● Heating mode is turned on?
● During defrosting under he-
   ating mode, it may generate
   vapor, which is a normal 
   phenomenon.
“Water 
noise
● Air conditioner is turned on or
turned off just now?
● The noise is the sound of
the unit, which is a normal
phenomenon.
Cracking 
noise
● Air conditioner is turned on or
turned off just now?
● This is the sound of friction
caused by expansion and/or
contraction of panel or other
parts due to the change of
temperature.
Malfunction analysis