ok, from the post the other day if you read it, my fans were not coming on when the temp reached 185. i have checked the wiring a million times, and just bought another themrostat just in case. im checking the themrostat up to 220 degrees with a test light, and its is just not opening. fans work every other way fine. i have the thermostat into the neck on the manifold, and i know its getting plenty of flow any ideas??