If the thermostat is newer, go through the rest of this checklist for a heat pump not cooling. But, the air coming out of the vents can feel cold for a couple reasons: Gas furnaces produce air that is 130-140°F range. It could even be running in the air conditioning mode due to a malfunction. However, if they’re not designed to handle that amount of current, the breakers of both the indoor and outdoor units will switch off automatically. In other cases, cold air from the heat pump will be due to the unit operating in defrost mode. It requires a license to handle refrigerant and special equipment to know when the system is properly charged. I configured it for heat pump but still blowing hot air … If your system is running, but the fan is not blowing, your heat pump is defrosting. Cooling occurs due to evaporation on the coils. If the compressor fails, the entire HVAC unit won’t be able to function effectively. They will give you both repair and replacement estimates to compare. Items in red usually require a service call. Let us explain… The air could be warm but still feel cool. Frost on the outside coil is condensation that forms up on the coil in the form of frost. Refrigerant issues, electrical failures and overheating are some of the reasons why this happens. You wouldn’t be the first homeowner to overlook this obvious one. This is a safety precaution to protect them from breaking down suddenly. If the valve is malfunctioning, your heat pump will only work like an air conditioner—just cooling. Before calling a technician, the first thing you should do is take note … Dirty Air Filter. Well, there are 3 scenarios that might explain what’s happening with your heat pump: The heat pump isn’t actually blowing cold air, it just feels like it; Your heat pump is blowing cold air because it’s in “defrost mode” Well this could be caused by several things. They will help you decide if repair is the right option or if it might be better to use the money toward a new heat pump. There are other reasons your heat pump could be blowing cold air instead of heat, but those are the basics. Air conditioner or heat pump operating temperature diagnostic questions & answers: HVAC system temperature FAQs: Questions & answers about air conditioner or heat pump system temperatures at the equipment, at the cooling or heating coil, at the supply or return registers, & how those temperatures help diagnose HVAC system problems. Make sure your thermostat is set to heat. They just move it. The valves are supported by electric components such as solenoids. Failure to heat is probably the first sign that something is wrong, but a complete lack of heat suggests a couple of simple reasons that you can fix in a few minutes. The contractors are licensed and insured, and they know that they are competing for the work. Low coolant levels can effect system pressure and reduce cooling capacity, causing your air conditioner to freeze. But, if something goes wrong and your heat pump is suddenly trying to cool your home in the middle of the winter, you have a problem. Heat pump not heating The reversing valve is a vital component in heat pump systems. Why a Heat Pump Will Blow Cold Air. If that’s the case, switch it back to “cool” and you’re good to go. Fast and easy. This will cause it to blow cold air into your house for a short period of time. Heat Pump Blowing Cold Air – Why Is My Heat Pump Not Heating? Most homeowners leave this work to an HVAC technician. Tried cool mode today and its blowing hot air. It will be more susceptible to freezing if condensation comes into contact with it. If the problem persists, call your HVAC technician. When temp drops it then pumps hot air again. Select HEAT PUMP. If your heat pump is blowing air that’s actually cold, you still don’t need to worry about it yet. You can even take advantage of our preventative maintenance program to ensure the smooth and efficient operation of your HVAC unit no matter the time of year. Leaking refrigerant is something to watch out for because it means that there’s a worn-out joint or that rust has accumulated on the evaporator coil. They do this by reversing the refrigerant flow to pick up heat outside, as if in Heat mode, and bring it in to defrost the coil. Plus, it condenses moisture out of the air to dehumidify your home. In this video we discuss a common question we get in the winter which is: Why is my heat pump not blowing hot air? Cleaning both coils is usually part of a comprehensive maintenance service. Heat pump blowing cold air in heat mode. Stubborn debris can be removed with a light bristle brush or a soft paint brush, the kind used for house painting. Then it will turn the auxillary heat on until the house warms up to the correct temperature. Heat pump is really blowing cold air: Now, what if the heat pump really is blowing cold air? The coil in your air handler or furnace gets extremely cold when your system is in Cool mode. Heating and air conditioning maintenance companies often get calls for service during the winter. Sometimes the air feels hot, just becasue it is not being "cooled" at all, can be circulating thru warm ducts. The reason for this, is that in the cooling mode, the outdoor coil actually becomes hot. When a heat pump begins the defrost cycle, the outdoor fan shuts off and the system switches over to cooling mode. In order to detect if an air conditioning unit lacks of gas in its heat pump we are going to see the external unit (in the external heat exchanger) if it freezes itself or it frosts. The compressor plays a vital role in keeping your home comfortable. You May Need Professional Help to Address: Coolant levels. 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