What's the difference between the regular screen and the optional large hole screen?
It's just like it sounds. The regular screen has holes that are smaller to allow less pulp into the juice. The large hole screen allows a much greater amount of pulp to enter juice. (Approximately 50% more pulp. This will vary depending on material).
The cutter wear is based on usage. Customers using the Champion only occasionally may get 10-15 years of service. With heavy use the cutters need replacement every 18-24 months. If you have concerns our customer service people can assist you.
My juicer worked fine the first time but now when I plug it in it doesn't turn on?
The newer model Champion Juicers have a sensor located on the juicing parts that will not allow the unit to operate unless all parts are properly positioned (refer to trouble-shooting section of the owner's manual).