Furnace Troubleshooting: What to Do Before Calling for Furnace Repair10/07/2015 You can’t depend on the weather in Raceland, but one thing the team at Guidry's Air Conditioning & Refrigeration Service wants you to be able to depend on is your heating and cooling system. Having a comfy home isn’t a seasonal thing, it’s something you need all year. When your furnace is having trouble you may think that means a furnace repair can be expected in your future. That may not be the case. If your furnace hasn’t been its usual, reliable self as of late, there are a couple of things a homeowner can do before calling in the experts at Guidry's Air Conditioning & Refrigeration Service. 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 overlook flipping the switch, telling your heating and cooling system what you would like it to do. Another thing to check while you’re at the thermostat is the battery. The majority of digital thermostats are equipped with a low battery warning, but if it’s been some time since you’ve changed batteries it may be time for a switch. It’s another simple 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 inhibit your system’s efficiency and block air flow, it could also cause a sudden breakdown. Changing the filter in your heating and cooling system is simple and it can play a huge role in keeping your system functioning 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 easy to fix as a tripped breaker or blown fuse. Check the Vents A typical misconception is that a homeowner should shut the vents in unused rooms. This could actually lead to a furnace repair in the future. Closed vents create higher pressure inside 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 problems the team at Guidry's Air Conditioning & Refrigeration Service 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.