Page 9
Normal Sounds
Operating Instructions
NOTE
All the pictures in this manual are for illustrative purposes only. The actual 
appearance of the air conditioner you purchased may vary slightly, but its operation 
and functions will be similar.
Gurgle/Hiss
Gurgling or hissing
noises may be heard 
due to refrigerant 
evaporator during 
normal operation.
Sound of Rushing Air
In front of the unit, you 
may hear the sound of 
rushing air being 
moved by the fan.
High Pitched Chatter
Vibration
Unit may vibrate and
Pinging or Switching
during normal
Sound of Rushing Air
In front of the unit, you 
may hear the sound of 
rushing air being moved 
by the fan.
High Pitched Chatter
Modern compressors may 
have a high pitched sound 
during cooling cycle.
Vibration
Unit may vibrate and 
make noise because of 
poor wall or window 
construction or 
incorrect installation.
Pinging or Switching
Droplets of water hitting 
condenser during normal 
operation may cause 
pinging or swishing.
Gurgle/Hiss
Gurgling or hissing noise 
may be heard due to 
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through evaporator 
during normal operation.
Operating
Instructions
MAW15R1
MAW06R1 / MAW08R1  / MAW10R1 / MAW12R1