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The roomba is designed to raise itself when encountering resistance in order to allow the roomba to transfer between surfaces of various heights. If the roomba was recently cleared of debris, the deck height control cable may have been positioned differently when reassembled. The cable may need to be returned to its original position.
The roomba may have ran into an obstacle or surface it is unable to move through, around, or over. Pick up the roomba and place it on an acceptable surface to continue its cleaning. A virtual wall may be created to keep the roomba from returning to places it frequently gets stuck. 59ce067264