Gree GWC09MB-D3DNK Series Owner's Manual page 21

Malfunction analysis
Problem
Either there is an odour source in
Odours are
the room, such as furniture or
emitted
cigarette, or the filter is dirty.
Air conditio-
There may be interference,
such as thunder, wireless
ner suddenly
devices, etc.
turns on and
operates
normally
Outdoor
Heating mode is turned on?
unit emits
vapor
Water
Has the air conditioner just
flowing
been turned on and off ?
noise
Craking
Has the air conditioner just
noise
been turned on and off ?
Check items Solution
Eliminate the source of the odour.
Clean the filter.
Cut the power supply off and
put the power back and then
turn on the unit again.
During defrosting under heating
mode, it may produce vapor,
which is a normal.
The noise is the sound of
refrigerant flowing inside
the unit, which is a normal.
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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