I have an Oakmont R345 that I purchased a couple of months ago. Four days after having it, the powere rd liner quit. The unit, in order to work as it quits for no apparent reason, is that apparently it has to be reset. What that entails is getting behind it, finding the little black box underneath, pulling a plug out of the round hole, then plugging it back in. Nuts, huh? Not real impressed with that setup, but hey, it's now my problem. Nice design flaw.