Freezer and refrigerator maintain the set temperatures but periodically it makes a loud "CLUNK" sound that sounds like a hammer hitting a board. It's loud enough that it's heard in adjacent rooms.
Any ideas?
The unit is a 3 door, freezer on the bottom, french door refrigerator. Ice machine works fine.
I"d call service but sometimes it's 30 minutes or so between the clunks and I don't want to have a serviceperson just hanging around waiting for the clunk.
Thanks in advance.