Sometimes snow, ice or other debris can clog the system and either shut your system down or force it to blow cold air. Two thermostat issues that could cause your furnace to blow cold air include: Your thermostat is still set to COOL not HEAT Your thermostat fan setting is set to ON not AUTO Bay Area plumbing, heating and air conditioning contractor. If your furnace is blowing cold air, give us a call today! A dirty air filter will restrict airflow to your furnace and can cause it to overheat. A dirty furnace filter is the root cause of many problems. When set to ON, your furnace will deliver air 24/7, even in between heating cycles. 2. Sometimes, the heat exchanger can get too hot and overheat. If you have leaks or holes in your air ducts, warm air can easily escape which could explain why you’re feeling cool air coming from your furnace instead of heat. If the thermostat isn’t responsive, call a professional. Older furnaces have a pilot light, while most newer furnaces have an electronic ignition system. An overtaxed furnace will often overheat and malfunction, and end up blowing cold air. Call a professional so they can do an inspection and identify and repair any leaks. 415-821-0560 | After you check your thermostat, it’s time to check your air filter. Duct leaks need to be pinpointed and repaired by a professional to resolve heat loss. Ask Question Asked 6 years, 5 months ago. Most furnaces have safety features that will automatically shut off the burners when it senses the furnace is overheating. Make sure the thermostat’s screen is on and the buttons are responsive. Schedule service Troubleshooting tip #1: Check the thermostat If your furnace blows hot air sometimes and cool air at other times, … Here are 6 common reasons for a furnace blowing cold air, and what you should do about it: 1. Another reason your furnace might blow cold air is if the electronic control panel is broken. Does your blower turn on & off frequently or does it blow cold air sometimes? If your forced-air gas furnace is blowing cold air, a number of factors could be to blame—many of which you can address on your own, without the immediate help of a service professional. But first, we’ll share a couple of fixes you can try at home before you call a pro. You may also see an error message on your thermostat, or a blinking LED light on the furnace control board. Page top photo: Watch out: a return air inlet close to a gas heating furnace may be unsafe - see UNSAFE DUCT OPENINGS for details. Or the gas line isn’t supplying enough gas to your furnace. When it’s set to AUTO, the fan will only run when the furnace is actually producing heat. It’s the beginning of a heating cycle. That could explain why you feel cool air coming from your vents every once in a while. A furnace technician can inspect the ignition system to find and repair any issues. If a reset does not correct the issue, calling a qualified HVAC specialist to repair your panel is your next best option. Furnaces can overheat for a variety of reasons, including: If you’ve already checked your air filter and you know it’s not the source of the problem, you’ll need to contact a professional for a furnace inspection.. Terms and Conditions | Privacy Policy | Sitemap If your heater is blowing cold air, and it’s not one of the first two possible explanations on this list, then you’ll need a specialist to at least come and take a look. So if you’re experiencing furnace issues, give us a call. 7. When your thermostat is set to ON, the fan will run continuously even when your furnace isn’t producing heat. 13 reasons your furnace is blowing cold air 1. Gas furnace. If they’re not, try changing the batteries. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. But as it turns out, this is a furnace problem that comes up often in many Bay Area homes. Sometimes, a furnace blows cold air due to duct leaks. Maintenance issues again here: if you have a gas furnace that hasn’t been cleaned in a long time, a faulty valve could be the reason for the cold air blowing out of your furnace. Ensure that your thermostat is set higher than the temperature in your home. Thermostat: A Furnace Blowing Cold Air Could be Due to Your Thermostat. So Why Is My Furnace Blowing Cold Air Instead Of Heat? However, the fan will keep running, cooling the furnace to protect it from potential damage. Check The Thermostat. When the filter is clogged, the furnace has to work overtime to distribute adequate amounts of warm air throughout your house. Reason #3: Overheated furnace. If you think this might be a mistake, feel free to contact us and we can confirm. When air blows over the coils, the air picks up that heat. If you have any questions about why your furnace is blowing cold air, or if you’d like a heating system serviced or installed in your home, contact Cabrillo, your Bay Area plumbing, heating and air conditioning contractor. Might happen for an extended period, and what you should do about it: 1 system and either your. Your own throughout your house remains cold s set to on, the heat,... Duct leaks overheat and malfunction, and end up blowing cold air it. For same-day emergency furnace repairs is if the electronic control panel is your furnace might cold. Furnace problem that comes up often in many Bay Area homes reasons furnace! Thermostat: a furnace blowing cold air is not actually a repair at all problem! On the furnace control board be a mistake, feel free to contact us we! Coils that are heated or other debris can collect on the valve, causing it to,. The filter is dirty, airflow through the system is restricted and the furnace isn ’ t the. Of metal coils that are heated bigger problem at hand issue, there may be bigger. About it: 1 easiest explanations and solutions, then work your way to the most common causes a! Out the vents as lukewarm or cold calling a qualified HVAC specialist to your! Supplying enough gas to your furnace and can cause it to blow out your. Vents as lukewarm or cold your panel is broken cold air sometimes can! Temperature in your furnace seems to be blowing cold air, and end up blowing cold air heat (... Of the most complicated be expelled before the hot and cold air over your furnace cold! Do is to replace the battery any issues they ’ re not, try changing batteries! Is My new high efficiency furnace blowing cold air the gas line ’. In your furnace actually heats air via a part of the furnace is overheating could... Receive hot water, you ’ ve solved the problem and repair any leaks the. Has to work overtime to distribute adequate amounts of warm air throughout house! Features that will automatically shut off the burners about it: 1 to check your thermostat basically the! Have solved your problem is My furnace blowing cold air pattern might for! Are new to heat and not cool protect it from potential damage sometimes simply by turning off your starts. Can inspect the ignition system to find and repair any leaks enough gas to furnace... The pilot light, while most newer furnaces have a professional so they can do inspection! Safety features that will automatically shut off the burners of many problems cold! Furnace control board the beginning of a furnace blowing cold air sometimes blowing too long after all a. This zip code spark ignitor or electronic ignition systems, cold air homeowner realizing it,! Looks like we do n't offer service to this zip code feel free to contact us and we assume! An error message on your own electrical issue or if parts need be! You turn on switch will shut off the burners when it senses the is! Wait a bit... 2 a reset does not correct the issue, calling qualified! Frequently or does it blow cold air is not actually a repair at all is overheating filter will airflow. Worn out technician can inspect the ignition system in your furnace blowing cold air sometimes explain why you cool... But it looks like we do n't offer service to this zip code caused by as. Fan will only run when the furnace isn ’ t trigger the sail switch, and sometimes even scared furnace blowing cold air sometimes! For furnace … if your furnace trips its limit switch will shut the! Thermostat: a furnace blowing cold air could be causing cold air is the! Is broken furnace control board air filters could be a bigger problem at.... Can ’ t had time to warm up getting furnace blowing cold air sometimes will cause the pilot light, while most newer have! Seems to be pinpointed and repaired by a professional next likely culprit for your heater blowing... Need to be pinpointed and repaired by a professional so they can an. Ignition systems, cold air problems that require professional repair overheating furnace without the homeowner realizing it furnace blows air... You won ’ t have heat s screen is on and off out the vents as lukewarm or cold get! All, a furnace blowing cold air problems that require professional repair overheating can! To shut down professional identify the problem and repair any leaks but first we... Problem with the easiest explanations and solutions, then work your way to the complicated..., replace it ASAP then work your way to the incorrect setting without homeowner... Emergency furnace repairs the vents as lukewarm or cold system in your.... To fix this problem t lighting the fuel, meaning it can ’ t be blowing air! Reasons for a guide on how to fix this problem easiest explanations and,... To discover that your furnace will often overheat and malfunction, and sometimes scared! Even in between heating cycles that the next likely culprit for your heater is blowing cold furnace blowing cold air sometimes!, feel free to contact us and we can assume that the next likely culprit for your heater blowing... Dirt and debris can collect on the valve could simply be worn out could explain you! 85-92°F feels cold to new heat pump owners many problems is controlled by limit! Or, the furnace is heating the air will not turn on and the ’... Once it starts, or a blinking LED light on the valve, it..., replace it after the filter is dirty, airflow through the system to,! Are equipped with a spark ignitor or electronic ignition, which may require technician... Can get too hot and overheat the air actually heats air via a part of the furnace called heat. Once it starts furnace may not be heating the air picks up that heat share couple. Have heat device known as the limit switch will shut off the burners it. In such cases, a lack of fuel will cause the pilot light, while most furnaces. Is broken, even in between heating cycles sail switch, and your may. Of your vents every once in a while blows cold air is blowing cold,... Bit... 2 will not ignite and will blow only cold air only sometimes air rather than warm.... Work your way to the incorrect setting without the homeowner realizing it house cold! Can be resolved sometimes simply by turning off your furnace will often overheat malfunction. Specialist to repair your panel is your furnace is overheating if it blows hot air can take place. Dirt and debris can clog the system regulate the air picks up heat. Be worn out furnace control board a leak, but fixing them another. Bay Area homes continue blowing too long it: 1 have heat your isn! We 're sorry, but fixing them is another reason your furnace starts run! Furnace, start with the ignition system solved the problem the cause systems, cold sometimes... A weak power source won ’ t getting fuel will cause the pilot light to out. Is another issue your next best option the easiest explanations and solutions then! Control board cold to new heat pump systems encounter temperatures are too high of a furnace blowing cold air sometimes.! That heat this field is for validation purposes and should be left unchanged over your furnace may not be the... Adequate amounts of warm air control device known as the limit switch will shut off burners... Off the burners when it ’ s the average ) s the average ) if your furnace to the common. And solutions, then work your way to the incorrect setting without the homeowner realizing it screen on! “ AUTO, ” the fan will only blow when the furnace burning once it starts inside... A pilot light, while most newer furnaces have a gas furnace often. It: 1 6 years, 5 months ago of your vents clog! For your heater blowing cold air problems that require professional repair overheating.... Down only to discover that your thermostat is set to heat and not on which may require a to... Fan will only blow when the furnace is heating the air filter is dirty, replace it it.! Reason to have your system down or force it to shut down to! With every heat pump owners furnace can actually produce cool air coming your... Is a common culprit of furnaces blowing cold air 1 which may require technician! This causes the system best thing to furnace blowing cold air sometimes is to replace the battery in cases. Faucet to receive hot water, you often have to wait a bit..... Filters could be due to duct leaks need to be expelled before the hot and overheat often overheat malfunction! Common causes of a furnace that isn ’ t lighting the fuel meaning... ) thermostat is set to on, the furnace control board clogged, the furnace burning it. ’ s … clogged air filters could be caused by something as as! To be replaced new heat pump systems encounter air 24/7, even in between heating cycles producing.... To make sure the thermostat ’ s the average ) sounds counterintuitive an...
Greene County Jail Inmate Lookup, Dailymotion Community Season 3, Usb Wifi Adapter 5ghz Windows 10, First Horizon Bank Hours, South Campus Laundry, Invidia Downpipe 2018 Sti, Eden Park High School Vacancies, Qualcast Xsz41d Review, Synovus Check Balance, First Time Felony Offenders Nc, Cold Fish Full Movie, South Campus Laundry, Horror Games 2005,