Move your Frigidaire refrigerator away from the wall, then unplug the power cord from the wall outlet.
Open the refrigerator door, then remove the screws from the damper housing and control panel, which is a white plastic cover located on the top left corner inside the refrigerator.
Disconnect the wire harness from the control panel by pulling it out with your hand, then pull the yellow light switch wire out of the housing.
Slide out the thermistor, which is a black cylinder connector, out of the channel on the top left panel above the housing.
Remove the entire damper housing and control panel assembly from the refrigerator. Pull the top damper control, a white box-like piece, out of the housing.
Disconnect all wires from the old air damper control, then connect the wires into the new damper control part.
Place the damper control back into the housing and press down on the part to snap it into place.
Place the damper assembly and control panel back into the top left corner of the refrigerator.
Slide the thermistor back into the side channel, then reconnect the wire harness to the control panel.
Reinsert the screws into the control panel and damper housing, then close the refrigerator door. Reconnect the refrigerator power cord into the wall outlet.