Wouldn't you be under warranty now since it's not been working since June and length of time to get replacement therefore irrelevant?Unfortunately, GHL does not have any replacement sensors on hand and my ION-D has been down since the first week of June. Has anyone had any luck getting their bad sensor to work. I'm a GHL nut and I think I should have waited to buy the ION-D. The sensor only has a 3 month warranty and every month the unit is not being used is counting down on the overall warranty on the unit. Has any one with a defective sensor had their overall warranty extended?