Furnace Troubleshooting: What to Do Before Calling for Furnace Repair10/07/2015 You can’t count on the weather in Carlsbad, but one thing the team at Banister's Heating & Air Conditioning Services wants you to be able to trust in 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 problems you may think that means a furnace repair can be looming on the horizon. That may not be the case. If your furnace hasn’t been its usual, stable self recently, there are a couple of things a homeowner can do before calling in the experts at Banister's Heating & Air Conditioning Services. Check the Thermostat We have been on a job where the only thing we did was switch a thermostat from “cool” to “heat”. While setting the thermostat for the season, it’s easy for a homeowner to forget to flip the switch, telling your heating and cooling system what you would like it to do. One thing to look over while you’re at the thermostat is the battery. Almost all digital thermostats have 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 inhibit your system’s efficiency and decrease air flow, it could also cause an abrupt breakdown. Changing the filter in your heating and cooling system is simple and it can play a big role in keeping your system running at its best. Check the Switches The first switch you’ll want to investigate is the breaker for your furnace. It’s often the case that 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 seal the vents in unused rooms. This could actually lead to a furnace repair down the road. Closed vents cause higher pressure within your duct system and cause your system to work harder than it needs to. If you’ve been through our troubleshooting tips and you’re still having problems the team at Banister's Heating & Air Conditioning Services 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.