Report "The mechanism at the bottom of my glass jar has seized. It is very difficult to move at all. Can this be repaired? The model is the 51mbl26 Thank you The normally moving parts including the blade have seized at the bottom of my jar. I can only get the parts to move with a wrench. May have washer it in the dishwasher one time too many. The model number is 51BL26 (MBB5)"