Since winter is coming I wanted to get my defrost working again. Last winter it did not seem to work well at all. I figured the window was not getting juice. Well it is. The strips are getting 12 volts, so in theory it should work. Is it possible for these windows to go bad even if they are getting the 12 volts? I just had my defrost on for ten minutes and the big strips where the wires plug in were still stone cold. I figured you could tell on those when they warm up. Am I right? Do those 2" wide strips at the base of the window warm to the touch? Also how would one test the whole thing without snow? I am sure the window itself will not get warm enough to feel.