I've got a customer who I've replaced a motion sensing flood light for twice in the last 3 months. Has anyone here had problems with Heath/Zenith brand fixtures? Both times the fixtures seem to work fine for awhile then I'll get a call that the llight will not turn off(same scenario on both fixtures).Sensing and range of motion seem to be fine when I put them up and test them but have had the same reason for return calls on both.In the past I've had issues with the more elaborate ones that have far too many functions to begin with but never with the less technical type models. Thanks.