Furnace Troubleshooting: What to Do Before Calling for Furnace Repair10/07/2015 You can’t depend on the weather in Chicago, but one thing the team at iTemp Heating and Air Conditioning wants you to be able to count on is your heating and cooling system. Having a comfy home isn’t a seasonal thing, it’s something you expect all year. When your furnace is having problems you may think that means a furnace repair can be needed soon. That may not be the case. If your furnace hasn’t been its usual, reliable self recently, there are some things a homeowner can do before calling in the experts at iTemp Heating and Air Conditioning. Check the Thermostat We have received calls where we simply had to switch a thermostat from “cool” to “heat”. While setting the thermostat for the season, a homeowner can easily forget to flip the switch, telling your heating and cooling system what you need it to do. One thing to check while you’re at the thermostat is the battery. Most digital thermostats give a low battery warning, but if it’s been some time since you’ve changed batteries it may be time for a change. It’s another painless fix that could save you a repair call. Check the Filter A dirty air filter can create all sorts of complications. Not only will a dirty filter hinder your system’s efficiency and decrease air flow, it could also cause an unexpected breakdown. Changing the filter in your heating and cooling system is simple and it can play a huge role in keeping your system running at its best. Check the Switches The first switch you’ll want to look at is the breaker for your furnace. Sometimes a problem can be as simple as a tripped breaker or blown fuse. Check the Vents A common misconception is that a homeowner should close the vents in unused rooms. This could actually lead to a furnace repair down the line. Closed vents generate higher pressure within your duct system and cause your system to work harder than it needs to. If you’ve tried our troubleshooting tips and you’re still having troubles the team at iTemp Heating and Air Conditioning are always there for you to make sure all of your home comfort needs are met. Give us a call at or set up an appointment with us online using our online scheduler.