DescriptionThis video provides step-by-step instructions for replacing the bottom air duct on a Frigidaire Air Conditioner. The most common reason for replacing this part is if it is damaged or missing.
All of the information in this video is applicable to the following brands: Frigidaire
Step-By-Step Instructions1
To replace the bottom air duct in this frigidaire air conditioner…
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… you will need a #2 phillips-head screwdriver, a 10mm socket, a putty knife, a thread locking solution, and foam strip insulation.
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Before you begin, unplug the unit’s power cord.
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To perform this procedure, you will need to fully uninstall the unit from the wall sleeve or window and set it on a sturdy surface.
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Now pull the air filter out.
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Use the #2 phillips-head screwdriver to unthread the two screws securing the grille assembly.
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With the screws unthreaded, use the putty knife to help pry the grille assembly off.
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Release the control panel wiring from the retainers to provide enough slack to set the grille aside.
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Next, unthread the six screws to release the rear grille if attached.
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Unthread the lower screws securing the left-and-right-side air intake screens.
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Detach the screens from the top to remove.
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Now unthread the eight screws securing the unit’s cabinet.
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With the screws unthreaded, lift the cabinet off.
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Cut the foam strip insulation covering the control box cover.
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Now unthread the three screws securing the cover.
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Now unthread the upper and lower screws securing the control box to the frame and base.
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With the screws unthreaded, shift the box out of the way.
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Cut the foam strip insulation on the right side of the air duct…
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… and peel back the tape at the top.
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Pull the frame back so you can fully remove the top and middle air duct sections.
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Use the 10mm socket to unthread the blower wheel mounting nut.
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Slide off the lock washer and the flat washer.
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Next, unthread the two screws securing the fan motor shroud to the base.
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You can now tip the fan shroud and condenser back so you can fully remove the blower wheel.
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Next, unthread the four screws securing the evaporator to the frame and base.
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Unthread the two screws securing the power cord retainer as well.
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Have an assistant help to lift the evaporator out of the base and hold it out of the way as you remove the old bottom air duct.
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To prepare the new bottom air duct for installation…
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… apply a new piece of foam insulation to the right side near the front.
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Position the new duct on the base.
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… and thread the four screws to secure the evaporator to the frame and base.
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Rethread the two screws to secure the power cord retainer as well.
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Confirm the rear washer is on the motor shaft…
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… then realign the blower wheel on the shaft…
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… and slide on the flat washer and the lock washer.
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Apply the thread locking solution to the threads on the motor shaft…
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… then thread and tighten the nut.
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Replace the screws to secure the fan shroud to the base.
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Reposition the top and middle air duct sections.
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Fully position the control box…
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… then rethread the upper and lower screws to secure.
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Reposition the control box cover…
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… and rethread the screws to secure.
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… and rethread the eight screws.
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Replace the left-and-right-side air intake screens and rethread the lower screws.
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If applicable, reinstall the rear grille.
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Secure the control panel wiring in the retainers.
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Align the top tabs of the grille assembly with the slots in the top edge of the unit and snap the assembly into position.
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Thread the two mounting screws.
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Keeping the upper lip facing outward, insert the air filter into the front grille slot.
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Reinstall the unit in the wall sleeve or window as necessary.
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Plug the power cord back in…
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… and the air conditioner should be ready for use.