I just had my gas pack installed the day when it was raining really hard. The installers kept on working until dark and finally he had my gas furnace going. During the installation, his partner used an umbrella while he had the control panel door wide open working on the electrical wiring (no power, of course) and gas connections. I could see rain water dripping in and around the control area. My concern is whether moisture could be trapped in the unit, especially in the control side. Could the interior be warm enough to cook any moisture trapped in there? Should I call them back to do an inspection? The unit is an American Standard gas/electric a/c furnace. Also, with the cooler weather, how do you check if the a/c is working right?