The fix: Duct sealing. Replace or clean dirty or clogged filters. I can fix it by turning off the system and resetting the circuit breaker, but it gets pretty cold … It’s Just Been Switched On – Any furnace will blow cold air when it starts up, since it takes time for hot air to travel through the system and into your home. Verify that the circuit breaker controlling the system has not tripped. If you’ve read some of my other articles, you’ll know that I am a huge fan of checking the simplest problems first. Cold air trapped inside will need to be expelled before the hot air can take its place! The following are seven common problems that can cause your furnace to emit cold air. blowing cold air furnace broken It was a dark and stormy night. However, the fan will keep running, cooling the furnace to protect it from potential damage. If your furnace is blowing cold air, it … There is a reason for this – it works! Sometimes, it’s best to call in the professionals when you’re stumped. Frank’s Heating & Refrigeration. Is the Pilot Light lit? There are four main components of a furnace. Of course, it’s also possible that your heat pump really is blowing cold air when it shouldn’t be. Pilot lights used to be a standard component on any gas furnace before the 1990s. If it has, reset the breaker. The furnace blowing cold air, or there is no heat in the house. Furnaces can be dangerous if not serviced properly. If your furnace is blowing cold air, give us a call today! If your furnace is blowing cold air, our team at ABC Plumbing, Sewer, Heating, Cooling and Electric can help. Before you call a pro, try these fixes: First, check your thermostat. Is your furnace blowing cold air? This post shows some basic troubleshooting ideas to get your furnace blowing hot again. Call 888-868-6667 today or contact us online to schedule furnace repairs in Chicago! I turn thermostat onto the "heat" position and set temperature at a higher temp than room temperature. This can cause the air to feel only lukewarm. Electric Furnace. Then when the thermostat is switched to "emer", heat blows. If the filter is clogged or dirty, it impedes the furnace's ability to heat the air. Replace the old air filter. Furnace in model # … In this setting, your fan will run continuously and will blow cold air. I?ve had people say to me, ?My furnace blows cold air only! If you can’t get your furnace to blow any air, hot or cold, it’s possible it has overheated. If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. Why Does My Furnace Blow Cold Air? Dirty Filter. 707-464-9529. If you’re noticing that your furnace starts blowing cold air here and there, not consistently, it may be because your thermostat is set to ON. If your fan only runs when your furnace is heating the air, then you’re much less likely to experience your furnace blowing cold air. If your ducts are leaking (and ENERGY STAR says that almost all homes leak about 30% of the air in their ducts), cold outside air is making its way into your ductwork. Related: Heat Pump vs. Air Conditioner and Gas Furnace, Which is Better? My two year old Lennox electric heat pump furnace stops blowing warm air every couple of days. Usually, a filter needs to be replaced every two months, or your unit may have a different specification. If you cannot find a pilot light, then an electric heating element is probably what ignites your furnace. 1. The lukewarm air coming out of your furnace can also be the result of leaky air ducts. In many cases, the solution is much simpler than you may realize. Getting home to a cold house and having a furnace that blows cold air is a headache. Make sure the thermostat’s screen is on and the buttons are responsive. There are a few things to check in your home in the case that your furnace is blowing cold air, such as your thermostat settings, air filter, and your home’s ductwork. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. If they’re not, try changing the batteries. If you can’t figure out the issue, give us a call and we will inspect your furnace. Dirty Filters. Electric furnaces pull air through a filter before it heats it. Details. The blower begins blowing, but does not blow warm air, only cold- it doesn't heat up. If you have a dirty filter, replacing the filter typically stops cold air from blowing. Wrong thermostat setting. It has an led indicator on the control panel that is blinking 4 times. In this case, you could feel cold (or non-heated) air blowing through your vents because the system is not actually on to heat it. If your electric furnace is blowing cold air, it has power, but there may be something else that is preventing it from operating properly. 6. The fan blows fine. If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. If your furnace overheats, it could end up blowing cold air. Schedule furnace repair today . Is The Thermostat Set To Auto or On? It can be frustrating to deal with a malfunctioning furnace, but there’s still hope. Additionally, here are a few troubleshooting tips for you to consider if your AC stops blowing cold air. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. We offer furnace repair and maintenance throughout the Chicago area, and our talented technicians can handle any furnace problem you may encounter. When overheating, your furnace can trip a high limit switch, causing the furnace burners to shut off so that the heat exchanger does not crack. If gas supply is interrupted for any reason, the gas furnace … Dust and debris in your indoor environment can usually accumulate around the filters. 900 Northcrest Dr. Crescent City, CA 95531 It will also depend on how much insulation you have around your ducts and how old your furnace is. We’ve tried to troubleshoot the issues your furnace might be having. All gas, oil, and electric furnaces are sensitive and calibrated pieces of equipment. Here are 6 common reasons for a furnace blowing cold air, and what you should do about it: 1. It only takes one or more components to be out-of-whack, or not tended to that creates problems. I have an American Standard furnace that is just blowing cold air but no heat. According to the chart on the panel this indicates a stuck limit switch. Troubleshooting a Furnace That's Blowing Cool Air. If I shut if off for a few minutes and then try again, about half the time it will blow hot air. 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