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. Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. 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. If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. Pilot Light If you have a gas furnace, the problem could be your pilot light. It’s always worth discussing your problem with a pro to see if you need their help. There is a reason for this – it works! An overheated furnace will cause cold air to emit from vents. 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. 3085 E Post Rd , Las Vegas, NV 89120. 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. If your furnace is blowing cold air, it’s easy to panic. During that time, the gas valves might have closed, broken, or clogged. 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 issue continues, call our team in Tacoma, WA. 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. Let’s troubleshoot electric furnace issues and offer solutions. Be sure not to overlook this issue as it can cause damage to your furnaces heat exchanger which can be a costly repair. If the furnace is still blowing cold air, check the thermostat batteries. Fuses can go when there is an electric surge, or just over time they can stop working. Thermostat is Set Too Low – Make sure the thermostat is set to a higher temperature than your home, and running on “heat” mode. Maybe, you were not using the unit during the summer. Why is My Furnace Blowing 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. Otherwise your electric heater or gas furnace will not turn on. Your System Was Just Turned On. If I shut if off for a few minutes and then try again, about half the time it will blow hot air. 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. Many new furnaces are much more efficient and have different methods of lighting your furnace. 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. So, how do you know which problem is causing your furnace to blow cool air? 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. Why is my electric fireplace blowing cold air. Why Is My Furnace Blowing Cold Air? | 2020. 3. It’s job is to remove water that is created during the heating process. This can mean that the whole furnace overheats. 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. July 20, 2020. Furnace overheating can be the cause of your cold air … It may be that your furnace simply needs a new fuse. Your furnace may be blowing cold air because the pilot light has gone out. 11. Friesen’s Climate Control in Edmonton are heating and air … First your filters ability to keep your air clean is reduced causing more contaminants to flow through your air. 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 … Dust and debris in your indoor environment can usually accumulate around the filters. If you live anywhere in the Twin Cities area and your furnace is blowing cold air (or not working at all), MSP Heating can help. pdf download about #47 coleman evcon gas furnace It’s a simple fix; just relight the pilot. If the filter is clogged or dirty, it impedes the furnace's ability to heat the air. 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. 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. Electric Furnace Troubleshooting. Should My Thermostat Be Set To “on” or “auto”? Is It Safe To Use Air Conditioner for Your Baby Room? The lukewarm air coming out of your furnace can also be the result of leaky air ducts. 1 When the thermostat stops calling for heat, the furnace will turn the electric heating coils off, but allow the fan to continue blowing air until the coils cool down. Is your furnace blowing cold air? Which Heating System to Choose? In such cases, a safety control device known as the limit switch will shut off the burners. Winter is arriving in California, but your furnace is only blowing cold air. These older furnaces typically have what is called a pilot light. 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. 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