My A/C units are all leaking water when it rains. They still leak even when turned off before it rains. All the water came from the filter side. It doesn't look like it is leaking through the roof gasket because it was wet above that. I have tightened the mounting bolts already. I have taken a hose to the roof to try to locate the leak locations. It leaked between the drain pan and the fan housing. Is there any way to stop this problem? I am on the road and heading to the National Heartland Rally in Goshen.