Check if your thermostat is set to ON instead of AUTO. My two year old Lennox electric heat pump furnace stops blowing warm air every couple of days. The following are seven common problems that can cause your furnace to emit cold air. It has a clean air filter in it also. Is my furnace not working?? Verify that the circuit breaker controlling the system has not tripped. 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. In this setting, your fan will run continuously and will blow cold air. Frank’s Heating & Refrigeration. The furnace blowing cold air, or there is no heat in the house. The “on” setting means that the furnace fan will be running even when the furnace itself is off. Make sure the thermostat’s screen is on and the buttons are responsive. Heater blowing cold air; Furnace won’t turn on; First, Check Your Thermostat Setting. 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. We’ve tried to troubleshoot the issues your furnace might be having. Electric heaters require power. Wrong thermostat setting. You’d want to take it to someone who’s certified to work on your make of car. Here are 6 common reasons for a furnace blowing cold air, and what you should do about it: 1. 1. See furnace repair details. I replaced the thermostat and that did not fix it. If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. In such cases, a safety control device known as the limit switch will shut off the burners. Is the Pilot Light lit? If gas supply is interrupted for any reason, the gas furnace … Electric Furnace. 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 you have a dirty filter, replacing the filter typically stops cold air from blowing. Cold air trapped inside will need to be expelled before the hot air can take its place! If your furnace is blowing cold air, it … Sometimes, it’s best to call in the professionals when you’re stumped. Pilot Light. The cold weather has rolled in and you’re looking to warm up the house, so you decided to turn your furnace on only to find that it’s blowing cold air. Usually, a filter needs to be replaced every two months, or your unit may have a different specification. This air might not always be cold, and could be room temperature as well. 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. Electric furnaces pull air through a filter before it heats it. This can cause the air to feel only lukewarm. 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. Here are some of the reasons your furnace might be blowing cold air: #1. A home furnace, heat pump, or heater blowing cold air isn’t necessarily a reason to panic. There are, incidentally, some common causes for why your furnace may be blowing cold air instead of warm, and what you can do to fix the problem. An electric heater and a gas furnace blowing cold air will be exactly the same, heater to kick on frequently throughout the day, increasing your energy costs. If your furnace overheats, it could end up blowing cold air. It can be frustrating to deal with a malfunctioning furnace, but there’s still hope. Getting home to a cold house and having a furnace that blows cold air is a headache. I then switch thermostat back to "heat" and unit shuts off as if the set room temperature has been reached although it hasn't. If you can’t figure out the issue, give us a call and we will inspect your furnace. I turn thermostat onto the "heat" position and set temperature at a higher temp than room temperature. I have an electric furnace that blow cold air sometimes. The fix: Duct sealing. If you can’t get your furnace to blow any air, hot or cold, it’s possible it has overheated. In many cases, the solution is much simpler than you may realize. So, if you have a tripped breaker, the furnace may stay on however, the air can’t warm up because the gas burner can’t ignite. The fuel system, the burners, the fan and the ductwork. If your heating elements are burned out, the system will blow cold air. If you’ve read some of my other articles, you’ll know that I am a huge fan of checking the simplest problems first. 10 Common Reasons Why Your Furnace is Blowing Cold Air Furnaces / By Smile HVAC When the furnace is turned on after a certain period, whether it be days, weeks or months, turning on the system does not mean that warm air will automatically begin to pass through the vents. When an element malfunctions, you will need to call an HVAC professional. A dirty air filter hinder air movement through the furnace. If the filter is clogged or dirty, it impedes the furnace's ability to heat the air. If you’ve run through the thermostat test described above, you’ll need to take the next step of bringing in a professional for repairs. 6. All gas, oil, and electric furnaces are sensitive and calibrated pieces of equipment. If your electric furnace is blowing cold air, it has power, but there may be something else that is preventing it from operating properly. 900 Northcrest Dr. Crescent City, CA 95531 Is The Thermostat Set To Auto or On? If your furnace is blowing cold air, give us a call today! If you cannot find a pilot light, then an electric heating element is probably what ignites your furnace. A breaker that continues to trip is an indication of a short circuit or other malfunction. Replace the old air filter. Is your furnace blowing cold air? Troubleshooting a Furnace That's Blowing Cool Air. I can fix it by turning off the system and resetting the circuit breaker, but it gets pretty cold … This post shows some basic troubleshooting ideas to get your furnace blowing hot again. Or I It will also depend on how much insulation you have around your ducts and how old your furnace is. 2. However, the fan will keep running, cooling the furnace to protect it from potential damage. 6. Furnace Still Blowing Cold Air? Dirty Filter. 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. And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. In this article we try to help you with the issues caused by cold air blowing from an electric furnace, do you need heating repair? Even if you have a gas furnace, they typically have an electric starter that ignites the gas burner. Before you call a pro, try these fixes: First, check your thermostat. Why let just anyone work on your unit? Then when the thermostat is switched to "emer", heat blows. If your heater starts by throwing warm air out of your registers, but you are soon left with a heater blowing cold air, then I would suspect that your flame sensor needs to be cleaned. There is a reason for this – it works! If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. If this doesn’t fix your problem, and your furnace is still not blowing hot air, you can move on to some of the other potential culprits. The fan blows fine. According to the chart on the panel this indicates a stuck limit switch. I?ve had people say to me, ?My furnace blows cold air only! It has an led indicator on the control panel that is blinking 4 times. What shoul I do next or how do I identify the limit switch. Details. Schedule furnace repair today . blowing cold air furnace broken It was a dark and stormy night. #3 – The Furnace Has Overheated. Additionally, here are a few troubleshooting tips for you to consider if your AC stops blowing cold air. You can go ahead and change the air filter yourself. Related: Heat Pump vs. Air Conditioner and Gas Furnace, Which is Better? You wouldn’t take your car to just any mechanic. Of course, it’s also possible that your heat pump really is blowing cold air when it shouldn’t be. If I shut if off for a few minutes and then try again, about half the time it will blow hot air. AC works properly with a clean filter. I have an American Standard furnace that is just blowing cold air but no heat. Dust and debris in your indoor environment can usually accumulate around the filters. Furnace in model # … Call 888-868-6667 today or contact us online to schedule furnace repairs in Chicago! This raises temperatures inside the furnace, and the limit switch shuts heating cycles down if the unit becomes too hot. Furnaces can be dangerous if not serviced properly. Dirty Filters. It only takes one or more components to be out-of-whack, or not tended to that creates problems. If they’re not, try changing the batteries. If your furnace is blowing cold air, there are chances that someone has adjusted fan settings from ‘Auto’ to “On’. We offer furnace repair and maintenance throughout the Chicago area, and our talented technicians can handle any furnace problem you may encounter. If your furnace is blowing cold air, our team at ABC Plumbing, Sewer, Heating, Cooling and Electric can help. Why Does My Furnace Blow Cold Air? Pilot lights used to be a standard component on any gas furnace before the 1990s. If your furnace is blowing cold air, not blowing any air at all, or making odd noises, it’s important to schedule a repair as soon as possible. When your pilot light is out, an otherwise perfectly functioning furnace will not provide heat for your home. The blower begins blowing, but does not blow warm air, only cold- it doesn't heat up. Replace or clean dirty or clogged filters. If it has, reset the breaker. A/C & Refrigeration offers HVAC Repair to Phoenix Valley homes and businesses. 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. The lukewarm air coming out of your furnace can also be the result of leaky air ducts. 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