Air Conditioner Vibrating and Shaking

Had the same experience this year with a mud dauber nest in our rear air conditioner. We were lucky there wasn't more damage caused by these little critters!

Having something like that inside the moving parts or having the four long bolts worked loose to sandwiches the top and bottom unit together is about the only things to allow the air conditioner to move around like like.

Be sure to check those four long screws accessible from the bottom side while you are working on the unit...

Funny how small things like this makes things unbalanced. I just recently had an unbalanced riding mower when the cutting blades were engaged. Sounded like it was going to fly all to pieces. Every yard mechanic around the neighborhood says its the bearings in the belt driven blades. I did same thing you did and started tearing apart everything I could easily do and couldn't find anything wrong. Then I finally noticed that when one belt went thru its pulley one side had a hump in it. Sure enough it was a piece of wood that got picked up and was 'fused' in place between the belt and the bottom of the pulley. Had to use a screw driver to chip it out with. It looked like a polished up piece of rock fused into place... All worked normal after that... That was probably going to be a $150 repair bill... I had driven through a section of the yard near the woods where I dump my CAMP BACKYARD PATIO firepit ashes. I guess it was one of those not all the way burned pieces of heated up wood chips... I know where to stay away from now hehe...

Roy ken

Don't you just love dirt daubers. :B

Better there than in the furnace blower.