Repeated overheating will hurt the furnace’s heat exchanger, which is expensive to fix. The air coming out of the vents upstairs is about the same as the cool room temperature. This will cause the upstairs level of a home to become much warmer than the lower level, which can be problematic in the winter and summer months. This is plenty warm to heat your home to your desired 72°F. A Note About Our Hours and COVID19: Open As Usual! We have replaced thermostat, radiator cap, blew out the heater core, attempted to get any air in the system, out. If your heater stops blowing after a short period or starts emitting cold air, it might be a good idea to check if the furnace is working fine. It seems pretty warm, but 80 degrees is much cooler than the average body temperature (98.6 degrees Fahrenheit) and could feel like cold air blowing into the home. The reason for this, is that in the cooling mode, the outdoor coil actually becomes hot. If the air conditioner is big enough to cool the whole house then air circulation is most likely the trouble. Solution #1 – Add an additional unit, thermostat and modify the duct work. If your furnace is blowing cold air, we’re sorry! As the frost builds up on the outdoor coil, it could potentially inhibit the ability for air to flow across that coil. Even if you have a gas furnace, they typically have an electric starter that ignites the gas burner. You don’t really notice it downstairs, because your heat source is there. This time of year, especially when it gets cold outside in the evenings, we get many calls from homeowners concerned that there is cold air blowing out of the duct registers in their home when their heat is running. The first thing you have to do is check to see what type system you own. People’s comfort level where indoor temperature is concerned can vary. As it cools, it becomes more dense and sinks. In the winter, that same humidity is pulled out of the air, but it comes in a form of frost on the outdoor coil (condenser). So Why Is My Furnace Blowing Cold Air Instead Of Heat? (Photo Source: cargurus) Of course, you get cold air when the bend door is fixed to the ‘close’ position. Don't panic if you see frost on your outside equipment's coil. We wanted to address this, as many times homeowners think this is an issue with their heating and cooling system, but if they have a heat pump, it's actually typically a very normal process. Fixing A Gas Furnace Blowing Cold Air Could Be Easy Follwing These 7 Steps First. on Jun 14, 2017. Routine maintenance could have prevented this call from ever happening. So your upstairs has a natural tendency to be warmer than lower levels. Once the frost builds up, your heat pump automatically goes through what we call, a defrost cycle to keep allowing the air to flow across the coil freely (which is a necessary function of your system). For example, if you have your thermostat set on the ”on” position instead of “auto”, the furnace will continually run, even if it isn’t on the heat cycle,. If I keep the bedroom door closed during the day, I will notice at least a 10-degree difference in temperature. The vents are closed in the basement, since it’s not used as living space. So, here are 3 possible solutions. By replacing the register covers with register/fan units more cold air is forced out of the upstairs ducts. It’s Defrosting. The flame sensor tells your gas heating unit to turn on and warm the air that is cycling through. Similar to when you turn on the faucet before you get into the shower, you may need to wait for a bit for that air to heat up. So, here are 3 possible solutions. Heat rising upstairs will always take the path of least resistance, and the stairway allows a massive transfer of heated air to the upstairs. One Response to My House is Hot Upstairs and Cold Downstairs – Here’s How to Fix That Dennis Sanchez July 24, 2019 at 6:13 pm # It never occurred to me that hot and cool air can leak into thin air if one of your ductworks has a leak and cause different temperatures in different rooms. Before we help you diagnose the problem, let’s make sure there is actually a problem. In a two-story home it can be difficult to balance the temperatures between the upstairs and downstairs. Reasons Why Your Furnace Might Be Blowing Cold Air The Thermostat is Set Incorrectly Symptoms. or Cold Upstairs, ... Then, there are dampers in the duct work that open and close based on which thermostat is calling for air or heat. Only thing is to aim it where you won’t be spending time so you don’t have cold air blowing on you. Then, there are dampers in the duct work that open and close based on which thermostat is calling for air or heat. In this blog, HVAC service company ACS shares a look at its causes, and what you should do if your heat pump starts blowing cold air. When the defrost cycle is complete and the defrost sensor closes, the system runs in heating mode again. 2. Unfortunately, these are issues that will need to be remedied by a professional. Don't panic if you have a heat pump and if cold air blows out of your duct work for a little while on and off while you run your heat at home. There are several possible causes for a furnace blowing cold air, so it’s hard to give you advice without more information. But here are 3 common causes you can fix yourself. When your heat pump sometimes blows cold air even when the setting for heat is on, it’s an alarming problem and depending on the cause, a common enough one. Pushed through the outdoor coil, which in turn melts the frost properly and can cut your pump. Supplying AC and heat the air filter will block airflow, causing it to.. 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