Remove the two black wire twist caps, and unwind the different wires.

During reassembly, make sure the wires are strongly twisted together (twist clockwise) and the wire caps are firmly attached.

Avoid swapping the polarity during reassembly. The neutral (ridged) wire connects to the left motor wire and the white wire to the heater.

Remove two more 14 mm Phillips #2 screws attaching the white plastic holding the wall cord to the base.