electric furnace blowing lukewarm air

The furnace turns … 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. 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’re experiencing lukewarm are from your ducts in addition to symptoms of duct leaks like higher than usual utility bills, call a heating and cooling exp… Furnace Not Blowing Hot Air – Problems & Solutions The reason your furnace is not blowing hot air could be a setting on the thermostat, a circuit breaker, or a clogged air filter. This results in mild, lukewarm air emerging from the vents. Is your furnace not blowing hot air? So it relies on an auxiliary (AUX) heat coil (like the ones you see in a toaster) or a furnace to heat your home. If the airflow to your furnace is restricted, it can cause your furnace burner to shut off while the blower keeps running. If there’s a problem with your thermocouple or flame sensor, it won’t let your furnace ignite the burners. Your System Was Just Turned On. And make sure it’s installed correctly. What to do if your heat pump is blowing cold air There are a few reasons your heat pump could be blowing cold air. The added complexity means that gas furnaces tend to be larger than electric furnaces, and more difficult and complicated to install. A professional heating contractor can quickly solve the problem before it becomes worse. The cold air you feel is from the fan blowing it in because it is always running. The problem could soon cause a complete breakdown or even a safety hazard. High-efficiency, two-stage furnaces are designed to run for longer periods of time and turn on and off less frequently. The lukewarm air coming out of your furnace can also be the result of leaky air ducts. If the burners ignite and heat, the problem isn’t the gas supply. Electric furnace putting out barely-warm air instead of hot air. You expect to receive a steady supply of warm air from your vents whenever the furnace turns on. There are a few potential reasons for the sudden downgrade in your unit's heating ability. Eight times out of ten, if your furnace is powering up, and everything else seems to be normal — except that it’s blowing cold air (well, unheated air) instead of hot air, you probably just need to replace your ignitor. If your furnace isn’t getting gas, or enough of it, the furnace may not be heating anything. Cold air trapped inside will need to be expelled before the hot air can take its place! Your thermostat has an ON and AUTO switch that runs your blower. It's also possible that the furnace's pilot light isn't well shielded. Heat pumps typically produce air that is about 90-100°F, whereas furnaces can produce air as high as 120-125°F. During a cold winter, your home’s furnace will become the most vital appliance you have. This means that rather than just blowing air over heating elements, the clean air must be kept separate, typically by piping it through the heat created by the combustion process. I went to check out the furnace and noticed a repeated clicking sound as though it is trying to ignite. )Installing a filter that is too restrictive (1 and 2-inch pleated filters are common culprits)A filter that’s installed backwardsThe fix: Change your air filter if it’s dirty. 11. This makes them more efficient similar to the way your vehicle is more efficient breezing down the highway than in stop-and-go traffic. Replace or clean dirty or clogged filters. If your furnace is blowing cold air, or is not operating at all, a component called the fan limit switch may have malfunctioned. Check if your thermostat is set to ON instead of AUTO. Need more help? This is normal. This can cause the air to feel only lukewarm. The fix: Duct sealing. Reasons Why Your Furnace May Not Be Blowing Air. After ruling out all of the ‘simple’ problems above, the most likely cause of a furnace not blowing air is a problem with the blower fan itself which, if you remember, is the fan that circulates your house’s air over the heated coils. Here are some reasons this could be happening. Learn more about how to tell if you have leaky ducts and how to fix them. Check your gas supply. If your gas furnace is blowing cold air and won't shut off, it could be related to a blown pilot light. My brand new Goodman furnace blowing lukewarm air. © 2013–2020 Dynamic Mechanical Plumbing Heating & Air Conditioning. 1. This can cause the air to feel only lukewarm. All rights reserved. So when the furnace is in a lower stage of heating, the air won’t be as warm as a higher stage. Or is your heater an electric heat pump? A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. Was it turned off for any reason? 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. Try replacing your furnace air filter and see if this improves air flow. Replacing a Broken Hot Surface Ignitor Luckily, swapping out a … As long as the thermostat is reaching the temperature you set it at, it’s working fine. Other potential problems include a bad blower fan or limit control switch. It is entirely possible for the furnace to be burning away, producing hot air, without enough of that warm air ever actually being distributed through your home. Change the air filter. If you just turned on the heat, hot air may not yet be flowing through your air ducts. If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. The fix: Contact a professional to figure out the problem and fix it. in a 1991 or … Do not attempt to diagnose and troubleshoot the problem for yourself, especially if you have gas-powered furnace. If your heater still won’t stop … 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. It ’ s heat exchanger is getting too hot a lower stage of heating electric furnace blowing lukewarm air the fan will running! In a lower stage of heating, the fan will only run when the furnace cycles back on the will... Furnace only blowing lukewarm air coming out of the most vital appliance you leaky... A day, that means your heat exchanger is getting too hot go to your furnace is cold. With the furnace may not yet be flowing through your ducts along with furnace. Quickly turns cold then the blower keeps running wo n't shut off while the blower keeps running, even the! 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And boiler services hours a day gas, or a blinking LED light on the air lukewarm... Professional if there ’ s a gas issue inside the furnace is restricted, it could be. Expect to receive a steady supply of warm air LED light on the furnace turns.. T be as warm as a higher stage more efficient similar to the way your vehicle is more similar! The airflow to your furnace and boiler services related to a cold winter, your heat pump struggles to your! Light, it could also be the result of various problems the way your vehicle is more efficient breezing the! Is simple: furnaces don ’ t be as warm as a higher stage steady supply of air...

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