Read on to learn the 13 most common reasons for your furnace blowing cold air and when to call for a furnace repair. That may be a quick and easy fix. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. Do ... Should you buy a heat pump? The main cause for this problem is having a dirty air filter. Warm air is sent through your ducts when the thermostat says it’s needed. In this article, we’ll discuss the most common indications that professional furnace repairs are needed. If everything seems to work properly, and then your furnace blows cold air back and forth until it switches off, you may be faced with a furnace that has overheated. We live in the northeast, so we haven't used the A/C yet, just the heat. If you have an oil-fired furnace, you may be out of fuel. it’s time to call a trusted repair company and schedule an appointment with a technician. Don’t let a furnace blowing cold air make you suffer. As with all major home appliances and HVAC units, if you're ever unsure about what’s wrong or how to fix it, it’s time to call a trusted repair company and schedule an appointment with a technician. Hans Heating & Air offers service 24/7/365 – we help you regardless of the time of day. If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. If the furnace still blows cold air, call in a professional. 11. If you do manage to relight the pilot but it keeps going out, a faulty thermocouple is likely causing your furnace to blow cold air. Do you have a gas furnace? If you have a newer furnace with an electronic control panel, you may need to reset the system. Fortunately, there are specific reasons why your furnace may not be working properly and specific fixes to those causes. This guide can help you evaluate or fix the problem. Blanton’s is prepared Gas and Oil Home Heating Furnaces - Goodman furnace blowing cold air - I have an 8 yr old Goodman GMs9 warm air furnace that for the past 4 weeks has been blowing cold air intermittently… Solution: Change the air filter and see if your furnace starts only blowing warm air. But because of the cold snap, all the furnace repair guys were slammed. Make sure nothing is blocking the vents inside as well. Long story short. Try turning the furnace off via the power switch. This is similar to rebooting your computer to fix a software glitch. HVAC systems can be confusing, but one thing’s for certain: Your furnace should blow hot air, and your air conditioner should blow cool air. It then turns itself off, and after a couple of minutes, resumes its heating cycle properly. This can cause your furnace to lock down for safety. If the pilot won’t light at all, you may have a faulty gas valve. If not, call a professional. 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 you have a newer furnace with an electronic ignition, such as an intermittent pilot or a hot surface ignition, your system may need adjustments or replacement of failed parts. However, if the light extinguishes again, or refuses to light, it’s a sign that professional help may be required. If your ducts have cracks or worse, then the cold air blowing into your house might be coming straight from outside right into your ducts, mixed in with the warm air your perfectly functional furnace is producing. OllieW Member Posts: 4. Anytime your furnace is blowing cold air and you suspect trouble with your pilot light or heating element, call in the help of a professional Birmingham furnace repair company. Troubleshooting a Furnace That's Blowing Cool Air. Waukesha Furnace Repair Pros Help You Diagnose and Repair Pilot Light Problems Do-it-yourself maintenance and repairs can only go so far, unfortunately. Your furnace may be blowing cold air because the filter is too dirty. Your next RV furnace troubleshooting is to verify that there is 10.5 volts of battery power coming into the unit. If your furnace seems to be blowing cold air, it could be a problem with the ignition system. Your furnace can then trip a high limit switch which will, in turn, cause the furnace burners to shut off so that the heat exchangers don’t crack. This is usually a simple fix, but you’ll need to call a technician to adjust or replace it. The model number is N9MPD100J20A2. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. So 85-92°F feels cold to new heat pump owners. It's also possible that the furnace's pilot light isn't well shielded. Try changing the batteries. To help cool the heat exchanger down, the blower motor will continue to run, which will eventually cause the furnace to blow cold air for a short amount of time. If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. My furnace is an Amana (model GUIC070CA30). You may also see an error message on your thermostat, or a blinking LED light on the furnace control board. IAQ and Mold in NYC Buildings: Are Kids at Risk? Always check and clean the furnace valve to make sure that it runs efficiently. The house was freezing, and my family was complaining, so I started phoning HVAC repair companies to schedule someone to fix it. It is usual for cold air to enter the heating system until it is warm, and then for warm air … 10 Common Reasons Why Your Furnace is Blowing a Cold Air Read More » Here’s another possible DIY fix for your heater blowing cold air. Reach us by phone at 336-472-7986 to set up a service call. An overtaxed furnace will often overheat and malfunction, and end up blowing cold air. Afraid it’s too expensive? When the furnace kicks on, the air you feel should be warm. Will only blow cold air. If the furnace in your Thomasville area property is only producing cold air when all you need is heat, then don't hesitate to call in the heating and cooling experts of All Comfort Control Heating and Cooling to assess the problem. Another thing to check is furnace ignitor, it may be coming on like it should and trying to blow hot air but the ignitor is not actually firing the furnace. If you’ve never lit the pilot light on your furnace, check the owner’s manual for instructions to ensure you’re doing it safely. Fix a furnace blowing cold air intermittently. If you notice your furnace only blows cold air on occasion but your home is still maintaining its temperature than this may be simply a setting on your thermostat. Make this the year you commit to a regular furnace maintenance plan, and reap the (warm and cozy) benefits for years to come. In some cases, you may be able to fix the problem yourself. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. When your furnace isn’t running, the air in your ducts cools down. But troubleshooting common furnace problems is a little less straightforward. When it does this we turn off the heat via the thermostat, then turn it on again, and then it blows warm air. 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. Have an expert inspect your ducts along with the furnace. So if the fan is on, the air that gets distributed throughout your living space may sometimes feel cool. Page top photo: Watch out: a return air inlet close to a gas heating furnace may be unsafe - see UNSAFE DUCT OPENINGS for details. Although this may seem obvious, be sure your thermostat is set to heat and that it's actually colder in your house than the temperature the thermostat is set to. If your furnace is blowing cold air, or is not operating at all, a component called the fan limit switch may have malfunctioned. It was one of the coldest winters I can remember in Seattle, and my furnace had stopped blowing warm air. It is If your furnace fan intermittently blows cold air or stops blowing warm air all at once, check a few things before calling a professional. It has been working all winter just fine, but just yesterday it started intermittently blowing unheated air into the … A furnace blowing cold air is indicative of a problem. freeoscar. When your thermostat is set to ON, it means the furnace blower (the fan that blows warm air into your home) is running continuously...even when the burners are not running. If you notice that your furnace is blowing hot air at times and cold air other times, your fan is likely set to ON when it should be set to AUTO. 3 years ago. Furnaces aren’t running 24 hours a day (unless you’re constantly increasing the temperature in your home). Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. When the air temperature reaches the setting you’ve chosen — let’s say 70 degrees — the furnace can take a break until the air drops below 70 again. While the furnace is running, check the ductwork for possible areas where heat loss may occur. If you just turned on the heat, hot air may not yet be flowing through your air ducts. When you get to your destination, you expect to walk into a toasty warm space. Most folks are aware of these two appliances, as well as their uses. Does the air start out cool and then warm up, or are the cool air cycles in addition to the warm air cycles (for example does it blow cold air 3 times a day, and warm air 7 times a … Some home heating and cooling issues are best looked at by a professional, but the first step in furnace repair is determining whether something is seriously wrong, or if it can be adjusted with home repairs. This is What to Do When Your AC Unit Freezes Up . The best service providers can customize a plan for your needs and your budget. Why does my new furnace high efficient Payne furnace blow cold air,not constantly but at least 3 different times in a day, my thermastat is set on auto but when the weather is cold outside it will still blow cold air thru out the house how do I turn this off ,is there an option ? … read more You also don’t want to risk frozen pipes. When the filter is clogged, the furnace has to work overtime to distribute adequate amounts of warm air throughout your house. Set your thermostat to AUTO to enable the furnace to regulate the heat based on the air … If it is neither of these reasons causing the issue, try turning the fan switch to "on" to force the furnace to start blowing air. But, it is still warmer than the indoor house temperature, so it is still putting heat into the house. Sometimes, it works just like it's supposed to, but sometimes, there is no fire and all I get is fan. The blower motor itself does not create the heat; rather it blows the heated air created by the furnace through the system's ductwork. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. Even worse, the furnace is blowing cold air! Have you installed a new thermostat lately? It may need to be replaced, or the setting may have issues connecting to the unit. The reasoning here is simple: furnaces don’t pump out hot air nonstop. 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