Cleaned well for 2+ years and suddenly started leaving film, grease, particles, you name it. Tried everything in troublshooting to no avail. Even upgraded detergent etc. Nothing. Called on extended service plan. Service man said filter was clogged by a KERNAL. Yeah. Ok. Said it's customer's responsibility to clean that out (though it's not in the manual and if I should break something taking it all apart, it would be my responsibility, right?). He had to order a part just so the visit would be covered under my contract (nice of... read full review »