Step 1
Unplug the dehumidifier power cord.
Step 2
Unscrew and remove the back panel on the dehumidifier using a screwdriver. Follow the path of the two wires connected to the switch motor near the bottom, moving upwards to locate the sensor, which is a 1-inch, black cube.
Step 3
Loosen the two screws holding the sensor wires to the switch, using a screwdriver. Each Y-shaped clip pulls out from under the screw head to release.
Step 4
Strip 1/2 inch of insulation from each end of the short lengths of 18-gauge wire.
Step 5
Wrap one end of the wire around a screw terminal and the other end of the wire around the second screw terminal. Tighten both screws.
Step 6
Replace the back panel with the screws and screwdriver.
Step 7
Plug in the dehumidifier. If it begins operating immediately, the sensor is defective.