This morning my E60 worked fine. Half way through my first lot it stopped going down. Left, right and up work fine but it will not drop. Not even in float with me pushing it down. I searched here and tried to adjust my drop speed bolt, no avail. I did the magnetic test and I do have power to my A coil. I removed the A valve and it looks fine, nothing visually wrong but I didn't tear it apart yet. I have fresh fluid in, only 2 days old. What else can I do short of replacing the A valve at $100?