Abstract: A coil cleaner for a condenser coil of a refrigeration system includes a sweeper assembly. The sweeper assembly has a pair of parallel brushes. Two motors, one located on either side of the sweeper assembly, are coupled to a first and second screw. The sweeper assembly is connected to the first and second screw by way of two nuts. The nuts travel on their respective screws when the screws are rotated, thus moving the sweeper assembly across the condenser coil. A controller manages the operation of the sweeper assembly. When the sweeper assembly has moved a predetermined distance, the sweeper assembly contacts a pair of sensors independently controlling each of the two motors. After contact with the sensors, the motors are reversed, and the sweeper assembly moves in the opposite direction. When the sweeper assembly contacts a second pair of sensors, both motors are turned off.