Check to make sure your gas supply is turned in the on position (parallel/in line with the gas supply pipe. 2. Is your furnace blowing cold air? The air filter needs to be changed if this is the case. Something is wrong with your heating system. One of the most common causes of a furnace blowing cold air is not actually a repair at all. What can you do about it? Elite Plumbing, Heating & Air Conditioning It’s a simple fix; just relight the pilot. Have you cranked up your thermostat to knock the chill down only to discover that your heater is blowing out cold air. If you only feel your furnace blowing cold air briefly, and the air is quickly replaced by warm air… 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. Is It Safe To Use Air Conditioner for Your Baby Room? If it isn’t something obvious like a fuse then you probably need a specialist to come in and help with the repair and get your home back up to the warmth you desire. Friesen’s Climate Control in Edmonton are heating and air … How Much Does A New Furnace Installation Cost in Calgary? It creates a spark, which lights the burners which saves the pilot light from being on at all times. If your ducts are accessible, you can check for any visible signs of damage to them. If your furnace is blowing cold air, it’s easy to panic. Initially it would fire on, then shut off, fire on, shut off, 5x. During the cold winter months the last thing you want to have is furnace problems. If I shut if off for a few minutes and then try again, about half the time it will blow hot air. Some furnaces can be hard to control and it is possible that you have simply got the settings wrong. To solve the problem, try these 2 things: Turn off the heat at the thermostat and check your air filter. 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. If your furnace starts blowing cold air, or even air that is not warming your home, it is likely time to call an expert. Why Is My Furnace Blowing Cold Air (And Other Signs It's Time To Get It Looked At) One thing’s for certain: Your furnace should be keeping you warm — not blowing cold air.Here are the most common signs of a faulty furnace. If your filter gets dirty, it can block the airflow in the heat exchanger. When your furnace isn’t running, the air in your ducts cools down. It’s a simple fix; just relight the pilot. Why is your heater blowing cold air? But it is downright maddening when the cold air is coming from your very own furnace! If your furnace is blowing cold air, check your thermostat, air filter and ductwork. There are a few reasons your heat pump could be blowing cold air. When your ducting has major leaks, then the hot air is mixing with the cold in your walls or attic. Attempting to make this question the end all for "my furnace is blowing cold" In my case, I had a furnace that just "blew cold" forever. This is a good thing. Furnace overheating can be the cause of your cold air … On most high efficiency furnaces there are vent pipes that lead to the outside of your home from the furnace. This defeats the purpose of having the furnace on, If you don’t know what you’re doing when it comes to repairs then there’s no point in trying your own repairs and making things worse. We’ve been helping homeowners in the Minneapolis-St. Paul metro area with their heating, plumbing and air conditioning problems since 1916. So you will feel air blowing through your vents but the air is not heated or cooled by your furnace system. If this is the case, you may just need a filter to be replaced. The Heat Pump Defrost Cycle Explained. Your furnace may be blowing cold air because the pilot light has gone out. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. The good news is that there are several reasons why your furnace might not be co-operating, and we can help you figure out which of several reasons could be the culprit for your furnace not working properly. It’s always worth discussing your problem with a pro to see if you need their help. By Switching your settings to “auto” it changes a few things. It is quite possible that your thermostat is set to a position other than heat. 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. Fuses can go when there is an electric surge, or just over time they can stop working. It may be that your furnace simply needs a new fuse. During that time, the gas valves might have closed, broken, or clogged. Tags: Calgary, Chestermere, Airdrie, Cochrane, © 2018 JPS Furnace & Air Conditioning, SiteMap. Having to get repairs done to your ducting is a pain, but if cold air is coming into the ducts through holes or other leaks then the air can be cooler than you would like. Your furnace might be blowing cold air because there is no enough gas. Start by turning your heater off and inspecting the filters. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. 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. It’s a problem that many of us experience when the weather takes a turn for the worse. Why Is My Furnace Blowing Cold Air? Depending on the age of your system and its model, you may have to manually relight it yourself or you may only need to push a button. In this article we try to help you with the issues caused by cold air blowing from an electric furnace, do you need, If you have a heater blowing cold air then you might feel incredibly stupid if it is because of the, Leaks in the ducts are a very common problem with electric furnaces. If your furnace overheats, it could end up blowing cold air. Proudly serving the Calgary, Chestermere, Airdrie and Cochrane areas. Dust and debris in your indoor environment can usually accumulate around the filters. Is there a problem with the fan itself? It’s a simple fix; just relight the pilot. So your fan will only run when your furnace system is running. To fix this issue is simple, just flip the fan switch from “ON” to “AUTO.” Auto setting will tell the furnace only to blow warm into your home when the furnace is on. Now this is of course if you have an older furnace. Troubleshooting a Furnace That's Blowing Cool Air. Should My Thermostat Be Set To “on” or “auto”? If the furnace is still blowing cold air, check the thermostat batteries. 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. Pilot Light. Furnaces can overheat from having dirty air filters. In such cases, a safety control device known as the limit switch will shut off the burners. Heating . Maybe, you were not using the unit during the summer. 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. Eventually this causes your furnace to kick in a safety feature called a limiter switch. We’ve tried to troubleshoot the issues your furnace might be having. More cool air than warm. Your furnace may be blowing cold air because the filter is too dirty. Furnace is Overheating. The furnace turns … Your furnace may be blowing cold air because the pilot light has gone out. If the filters are caked with dust, then it's likely the culprit behind your heater's malfunction. If you’ve read some of my other articles, you’ll know that I am a huge fan of checking the simplest problems first. Thermostat: A Furnace Blowing Cold Air Could be Due to Your Thermostat. Make sure the thermostat is set to “AUTO”, not “ON”. If your issue continues, call our team in Tacoma, WA. Furnaces can overheat for a variety of reasons, including: Common Reasons: Thermostat One of the main culprits of cold airflow is an improperly set thermostat. July 20, 2020. If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. Next, it actually restricts air flow that causes your furnace to work harder and if left too long…funny enough… it can actually cause your furnace to overheat. 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. So your fan will only run when your furnace system is running. Why Is There a Burning Smell from My Heater? 3. If your furnace is blowing cold air… Let’s troubleshoot electric furnace issues and offer solutions. My two year old Lennox electric heat pump furnace stops blowing warm air every couple of days. Usually a furnace blowing cold air due to ducting leaks would also be in conjunction with lack of air flow. I have an electric furnace that blow cold air sometimes. This is a common issue amongst older furnaces. You Own a High-Energy, Two-Stage Furnace. The lukewarm air coming out of your furnace can also be the result of leaky air ducts. Why is My Furnace Blowing Cold Air? One of the most common causes of a furnace blowing cold air is not actually a repair at all. Dust and debris in your indoor environment can usually accumulate around the filters. Your System Was Just Turned On. You may also see an error message on your thermostat, or a blinking LED light on the furnace control board. If it’s dirty, change it! Leaks in the ducts are a very common problem with electric furnaces. Coleman Evcon Figuring out why you have a heater blowing cold air can be frustrating With this electric furnace troubleshooting these are all simple furnace problems to fix. So, how do you know which problem is causing your furnace to blow cool air? 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. Furnace overheating can be the cause of your 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. Thermostat: A Furnace Blowing Cold Air Could be Due to Your Thermostat. If yes, our team in Conway, SC, suggest checking a few things first and then call us for help. Be sure not to overlook this issue as it can cause damage to your furnaces heat exchanger which can be a costly repair. Following up on the previous example, an issue that could cause your pilot light to go out is an not having the proper gas supply. Your furnace may be blowing cold air because the pilot light has gone out. So Why Is My Furnace Blowing Cold Air Instead Of Heat? Ensure that your thermostat is set higher than the temperature in your home. Luckily, it’s usually very easy to fix, and problems can also be prevented with … A filter in any heating or cooling product is important, but it is something else that can break and cause issues. I replaced the thermostat and that did not fix it. During the winter months, no one wants their furnace blowing cold air. If this is the cause of your furnace problem, your furnace will blow warm air, then cold air, and eventually stop blowing air all together. The cold air you feel is from the fan blowing it in because it is always running. Why Is My Furnace Blowing Cold Air? Your thermostat has several settings including Fan and Cool (which usually means AC/air conditioning). If this is the case, unless you are particularly good at repairs then it is time to call a heating repair company who can make the necessary changes. Your furnace seems to be kicking in okay, but the air blowing through your registers is not that warm. Have you inadvertently set a timer that has turned the thermostat down to a certain temperature? Typically it is best to have an expert come take a look however, below are some common issues that can result in your furnace blowing out cold air. It’s not uncommon for homeowners to forget about their furnace filters. This can contribute to cooled air in vents and inevitably cause cool air to pass through your heating system. Depending on the age of your system and its model, you may have to manually relight it yourself or you may only need to push a button. There is nothing more frustrating than when the weather turns cold and your heating system stops working. This turns off the burners to prevent a fire in your home. If your furnace starts blowing warm but then quickly turns cold, the flame sensor may need attention. It’s job is to remove water that is created during the heating process. If yes, our team in Conway, SC, suggest checking a few things first and then call us for help. This defeats the purpose of having the furnace on. The Thermostat is Set to Fan or AC. A telltale sign will be the noise that is being made by the furnace. When your home gets cold inside, not only is it uncomfortable for residents and guests, but it can also cause other issues like frozen pipes so it’s important to take care of furnace issues as soon as you notice something is wrong. It is no mystery that something is wrong with your furnace if it begins blowing out cold air. If your furnace is blowing cold air, or is not operating at all, a component called the fan limit switch may have malfunctioned. Give us a call or contact us online . A dirty furnace filter is the root cause of many problems. After a few moments, the air should be warm. Most often this air will feel cold when the fan is “on” but if you don’t notice a change in your overall home’s temperature most likely this is just blowing out room temperature air. Furnace is Overheating. When the chilly weather finally arrives, and you have to turn on your furnace for the first time after many months of non-use, the … Here ar 7 resons you may be getting a blast of chilly air and how you can warm up your house as soon as possible. Why Is My Furnace Blowing Cold Air Sometimes? pdf download about #47 coleman evcon gas furnace There are many issues that can cause your heater to blow cold air. Check how old your ducting is, it could well be that after years of wear and tear they’re not functioning as they once were. Verify the unit has … Elite Plumbing, Heating & Air Conditioning is a local, family owned and operated company proudly serving Las Vegas, Nevada and surrounding areas since 2005. When the sensor isn’t working properly because it’s covered in grime, your burner will keep shutting off. If you’re wondering “why is my heater blowing cold air?” then the chances are that you need to speak to a professional. Which Heating System to Choose? Pilot Light If you have a gas furnace, the problem could be your pilot light. It’s common for a furnace to blow cold air when you turn it on for the first time each season, but it can also happen at any time if something goes wrong. Electric Furnace Troubleshooting. Heat pump systems operate pretty differently than standard furnace systems. What Can I Do If My Heater Is Blowing Cold … If you turn on your heater on the first cold night of the season, only to discover that it’s blowing cold air, you have every right to be concerned. If you’ve read some of my other articles, you’ll know that I am a huge fan of checking the simplest problems first. Reasons for an Electric Furnace Blowing Cold Air. Unfortunately, you might have to go back to the manual and check on the controls. Older … Why Is My Furnace Blowing Cold Air? Check if your thermostat is set to ON instead of AUTO. A clogged filter means that airflow will be blocked over the heat exchanger. Compromised flame sensor. An overheated furnace will cause cold air to emit from vents. Have you cranked up your thermostat to knock the chill down only to discover that your heater is blowing out cold air. Your furnace blowing cold air could be caused by hot air escaping through holes in the duct work that carries the heat throughout your building. Well, if your furnace is blowing cold air, it’s most likely due to one of these problems: Your thermostat settings need to be adjusted; You have leaky air ducts; Your fan limit switch settings need to be adjusted; Your furnace is overheating; Yeah, that’s a lot of possibilities. First, the furnace fan turns on automatically when your home’s thermostat detects that the house is a different temperature than what has been set. The fan, however, may keep on rockin’, causing that cold air to blow. It is a simple fix, just relight the pilot. Ensure that your thermostat is set higher than the temperature in your home. Top Questions To Ask When Buying a New Heating System. why is my electric heater blowing cold air. As a result, it may break and cooler temperature might come out of the furnace. Here are some of the common and uncommon reasons we see furnaces blowing cold air. The fan blows fine. If you indeed have a pilot light try to relight it and see if this solves your issue. Possible Conclusion 1: It’s Not Blowing Cold Air. A common reason for a furnace to blow cold air instead of warm is that … This can mean that the whole furnace overheats. The “on” option is exactly how it sounds. 4. However, the fan will keep running, cooling the furnace to protect it from potential damage. Most furnaces have a built-in safety feature that turns the burners off when the furnace gets overheated, but the blower will stay on to cool the furnace to a safe level. When it is chilly, having a heater that is not working is a major cause of concern. However, this occurs more often than people think and can result from a plethora of different issues. These older furnaces typically have what is called a pilot light. This defeats the purpose of having the furnace on. Winter is arriving in California, but your furnace is only blowing cold air. Is your furnace blowing cold air? Is your furnace blowing cold air? An old or dirty flame sensor will cause your furnace to blow cold air, too. 1.Your Heater hasn’t had time to warm up. (2020). Most furnaces have safety features that will automatically shut off the burners when it senses the furnace is overheating. Request An Appointment Our technicians are ready to help. Dirty Air Filter You may have a clogged air filter that's preventing air from flowing through the system. More often than not, electric heaters blow cold air when its filters are clogged, and that's why it's the first thing you should check. 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