Question 1

How to clean the Truman cell of the Oreck AIR12GU?

Accepted Answer

Clean the Truman cell every 2 to 4 weeks, or when the red light stays on after 30 days of operation.

Cleaning Procedure

Unplug the device and lay it on its side with the hinge cover facing up
Open the cover by pressing the release button
Remove the cell by pulling it up by its handle
Place it in a container with warm water

Cleaning Methods

You can use two approaches:

Recommended Product: Spray Oreck Assail-a-Cell® cleaner between each plate. Let it sit for a few minutes without allowing it to dry, then rinse thoroughly with clear water.
Alternative: Soak in warm water with diluted mild soap to dislodge stubborn residues, then rinse with clear water.

Drying

Shake off excess water and let it air dry. Do not use hot air or compressed air. Reinsert the cell once completely dry.

Warning: Do not put it in the dishwasher and do not use cotton swabs to clean between the plates.

Question 2

How to open the Oreck XL Professional air purifier to access the filters?

Accepted Answer

To open your Oreck XL Professional air purifier and access the internal components, follow these steps:

Accessing the top cover

Slide the top cover forward, then pull it up to completely remove it. This gives you access to all internal elements.

Removing the front grille

If you want to clean the front grille, simply slide it to the left to remove it.

Accessing the filters

Truman™ Cell: pull on the handles while lifting up to extract the cell from the housing
Pre-filter: pull it up to remove it
Odor absorber: pull it up to remove it (optional cartridge)

Important

Safety tip: Make sure the device is unplugged before accessing the internal components. Remember to let the Truman™ Cell dry completely before reinstalling it.

Question 3

How do I stop the blinking light of the Truman Cell on an Oreck XL Professional air purifier?

Accepted Answer

The red blinking light "Check Collector Cell" on your Oreck XL Professional air purifier indicates that the Truman Cell needs cleaning. To stop this blinking, you must first clean the cell, then reset the timer. The normal interval between cleanings is 2 to 4 weeks.

Step One: Remove and Clean the Truman Cell Turn off and unplug the unit, then remove the Truman Cell by pulling its handles upward. You have two cleaning options: for a quick clean, gently wipe each of the four wires located at the front of the cell with a dry cotton swab. For a thorough cleaning, place the cell in a sink, bathtub, or dishwasher and rinse it thoroughly. You can also soak it for 2 to 3 hours in warm water with a little mild liquid dish detergent. An alternative is to use Oreck Assail-A-Cell cleaner by spraying it between the plates of the cell.

Step Two: Complete Drying It is essential to let the Truman Cell dry completely outside of the air purifier. Do not use compressed or heated air. Ensure that the cell is fully dry before reinstalling, especially in the corners where water may be trapped. If the light still blinks after reinstallation, it means the cell is still damp: remove it and let it dry further.

Step Three: Reinstall the Truman Cell Once completely dry, reinstall the cell by sliding it back into its original position. The cell is designed to fit in only one direction. Replace the top cover by sliding it back on and ensure that the cover and front grille are properly installed.

Step Four: Reset the Timer To permanently stop the blinking light, reset the timer by pressing and holding the air revitalizer button until the light blinks three times. Once this action is completed, the unit resets the timer and the blinking should stop.

If the blinking persists after completing all these steps, check that the button was held down long enough for the light to blink three times. Incorrect installation or incomplete resetting may continue to cause the blinking.

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