This usually means there’s food stuck in your disposal. Since the disposal drain and dishwasher drain are connected, a clog in one will lead to a backup in the other. To prevent this from happening, always make sure your garbage disposal is free of food particles before turning on the dishwasher and always run the garbage disposal with plenty of cold water. If it gets really bad, you can plug up the sink, fill it with water, then remove the plug and run the disposal. The weight from the water should help force out whatever is backed up in the drain, eliminating the blockage.
If this doesn’t work, contact us.
At Emergency Plumbery we have been confronted to all situations.