Cottonwood seeds vs AC condenser unit

My air conditioning condenser unit coated with cottonwood seeds June, 2015

My air conditioning unit no longer maintained proper temperature in the house.  It ran constantly but did not lower the temperature.   I noted more noise from the condenser unit. I shut off power to the condensing unit.

1/2 dirty and 1/2 clean unit

Cleaning with a soft bristle brush

Heavy levels of cottonwood seeds plugged the condenser.  I cleaned it with a soft bristle brush.  I finished tightening all the metal screen screws the next morning as the mosquitoes were hungry. 

The house AC now works properly and uses less energy.  Similar problems with outside air filters happen during this time of the year.  This restricts the flow of air in building air systems.