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Frigidaire Refrigerator Damper Control Assembly Replacement

3 min read
⚡ Quick Answer

Damper stuck open or closed causes fridge too cold or too warm. Replace the damper control assembly (air diffuser) to restore temperature control.

Difficulty Intermediate (DIY)
Est. time 15-60 min
Tools Multimeter , nut driver, screwdrivers

Frigidaire Refrigerator Damper Control Assembly Replacement — What This Part Does

The damper control assembly, also called the air diffuser or air damper, meters cold freezer air into the fresh-food compartment to regulate temperature. It opens and closes an air passage between the freezer and refrigerator sections so the fresh-food side gets the right amount of cold air.

The damper fails when the motor or actuator stops working electrically or mechanically, when the flap sticks or breaks, or when frost and food packaging block the air path. If the damper fails open the fresh-food section can overcool. If it fails closed or restricted the fresh-food section warms up because too little freezer air enters.

Jump to Replacement Steps

Signs It Needs Replacing

How to Replace It

  1. Unplug the refrigerator completely before opening any compartment or touching internal wiring.
  2. Remove the screws securing the damper control housing or cover panel inside the refrigerator or freezer section, then lower the assembly enough to reach the motor and electrical connectors.
  3. Disconnect the wire harness from the damper motor by pressing the release tab and pulling the connector free.
  4. If your model uses a freezer thermistor attached to the damper assembly, carefully unclip or unscrew the thermistor and set it aside for transfer to the new part.
  5. Remove any remaining screws or retaining tabs holding the damper assembly in place, then lift the assembly out of the refrigerator.
  6. Install the new damper control assembly by seating it into the mounting location and securing it with the original screws or tabs.
  7. Transfer the freezer thermistor to the new assembly if required, positioning it exactly as shown in your model’s service diagram to make sure correct sensor function.
  8. Reconnect the wire harness to the new damper motor, making sure the connector clicks fully into place.
  9. Reinstall the damper control housing cover and all screws, then restore power and verify proper airflow and temperature response over the next few hours.

The Part You Need

PartNotes
Frigidaire damper control assembly (air diffuser)Amazon | Find your exact part number on the model and serial plate inside the refrigerator door or on the back wall. Some assemblies are rated 120 VAC, 1.5/2 W, 50/60 Hz and may include the freezer thermistor bracket.

If this part is failing you may also see one of these codes:

When to Call a Pro

Call a technician if you are not comfortable working with 120 VAC wiring inside the refrigerator or if you need to test upstream control switches and voltage at the damper terminals. A pro can confirm whether the damper motor itself has failed (typically measuring 1,000 to 10,000 ohms across motor pins or receiving 120 VAC during operation) or whether a control board or wiring fault is blocking the signal. If frost buildup is severe or the refrigerator has a sealed-system refrigerant leak causing temperature swings, a licensed technician should diagnose and repair the root cause before you replace the damper.


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