Dampen a cloth with warm water and wring it out.
Wipe the exterior of the washing machine including the door and control panel with the cloth.
Dry the exterior of the washing machine with a clean, dry cloth.
Remove any items from inside the washing machine.
Fill the bleach dispenser with chlorine bleach or place a washing machine cleaning tablet into the washing machine drum and close the door.
Select the "Tub Clean" option and press the "Start" button.
Open the washing machine door to ventilate the tub when the cycle completes.
Mix 3/4 cup of chlorine bleach with 1 gallon of warm water and put on rubber gloves.
Dip a cloth into the bucket and wring it out. Open the washing machine door and wipe the gasket thoroughly. Lift up the seal and wipe underneath it with the cloth to remove any residue.
Dry the gasket with a clean cloth and leave the door open for ventilation.