Normal Sounds You May Hear
NOTE: Do not drill any holes in the base pan to eliminate these normal sounds. Doing so will void the warranty.
High Pitched Whine
Today's high efficiency compressors may have a high-pitched whine during the cooling cycle.
Sound of Rushing Air
At the front of the unit, you may hear the sound of rushing air being moved by the fan.
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.
Unit may vibrate and make noise because of poor wall or window construction or incorrect installation.