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

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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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