17
Malfunction analysis
Phenomenon Check items Solution
Odours are
emitted
● Whether there’s odour
source, such as furniture and
cigarette, etc.
● Eliminate the odour source.
● Clean the filter.
Air condition-
er operates
normally
suddenly
● 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
heating mode, it may
generate vapor, which is a
normal phenomenon.
“Water ow-
ing” noise
● Air conditioner is turned on or
turned off just now?
● The noise is the sound of
refrigerant flowing inside
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.
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