Kenmore 253.70181 Use & Care Manual page 12

Normal Sounds
Sound of Rushing Air
At the front of the unit,
you may hear the sound
of rushing air being moved
by the fan.
High Pitched Whine
Today's high efficiency
compressors may have a
high pitched whine during
the cooling cycle.
Vibration
Unit may vibrate and make
noise because of poor wall
or window construction or
incorrect installation.
Gurgle/Hiss
"Gurgling or hissing" noise may
be heard due to refrigerant passing
through evaporator during normal
operation.
Pinging or Swishing
Droplets of water hitting
condenser during normal
operation may cause
"pinging or swishing"
sounds.
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