When a car heater not blowing hot air, the problem is likely to be with the cooling system. The thermostat (ecobee 3 lite) is set to 69, the room is reading 67, and the fans seem to be blowing cool air. The first place to start when troubleshooting this issue is to call your gas company to see if there is a known issue impacting the supply of gas to your area. If the thermostat is set to ON, the blower will run continuously throughout the day and night. This delay is to protect your equipment from short cycling. The heater’s blowing cold, or the AC is blowing hot. When that happens, you will not see the burners ignite. Talk to your team today! 2. Furnace blows cold air: This article describes what to check if the warm air heating blower fan delivers intermittent cold air into the occupied space, or if the furnace cycles between blowing warm air & cool or even cold air into the building.. Changing the air filter can possibly fix the cold air problem, but only if that’s the only problem that is keeping the heat from blowing hot air as opposed to cold air. Do you need help with your furnace this winter? Check your thermostat’s settings, because your thermostat could be set to “Cool” which will limit your furnace from blowing hot air. Air filters are essential HVAC parts to keep clean to ensure your furnace pumps out warm air throughout the winter. Check the furnace’s air filter Your furnace may be blowing cold air because the filter is too dirty. Thermostat is definitely set on cool, says “cool … So if you feel the air blowing out of the vents while the furnace is off, the air will seem cool since it’ll be at about room temperature. Be sure you’ve set your thermostat to Auto or On, as well as Cool. Unfortunately, the usual outcome of a bad compressor is an expensive repair or having to replace the entire system. Select the thermostat you have: Fortunately, it should be simple to fix this problem quickly. Often times your furnace could be running but no heat comes out of your vent because your thermostat is on the wrong setting. You wouldn’t believe it, but sometimes a “No Cool” is something as simple as a thermostat that’s not set properly. If you only feel your furnace blowing cold air briefly, and the air is quickly replaced by warm air, this is the most likely explanation. Furnace overheating can be the cause of your cold air … If the "cool on" or the snowflake icon is flashing, the thermostat is in delay mode, which can take up to 5 minutes. We will help you diagnose the issues that you are experiencing, and we will ensure that your family and home are safe while also addressing the problems that prevent your home from warming as expected. Check These 6 Things If Your Furnace Won’t Turn On, Everything You Need To Know About Furnace Filters, Air filters improve the air quality in your home. Below is more information about four of the most common. Well, now he has another one. That way, you’ll be right back to a toasty warm environment in record time. However, if you find that the issue is something that requires a professional, get in touch with us and we will connect you with an HVAC.com Certified Contractor  in your area that will make your home cool and comfortable again at the best value for you! You’re busy – and so is your family. It keeps running. We installed a new theromostat. 7 common reasons a heat pump blows cold air If this is the case, you should call a trusted HVAC contractor immediately, as this could be a sign of a serious electrical issue. 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