If you are beginning your inspection, you first want to turn the heater and the thermostat on. While the heater is in operation and the thermostat on, you’ll be able check that everything is working. When you begin to examine each component, be sure you’ve shut everything off and checked again. This is a crucial safety measure. Now you can dig in. Take a look at the air filters and determine if they are in need replacement. Look at the connections and ensure that you look them over. Look at this blowwheel. This video will teach you what you should look for. 6dquqr7wet.