This is my second unit in the past 4 years. Both times the motor brushes burned out. The brushes and the motor are NOT available for replacement do to the fact that they are built in China. Imagine that??? Now that I have lost my second unit I am inquiring on the warranty process. It does have a lifetime limited on the entire unit. They have informed me that I need to package it up and ship in the power head in for inspection and acceptance of this part for a warranty. All I need is a $5.00 motor brush and I am back in business. This seems to be a waste of everyones time for something that costs around $50.00. Anyone else have success with a warrantied unit???