But when the winter weather drops to 40 degrees, that means your system will blow … The reason for this, is that in the cooling mode, the outdoor coil actually becomes hot. If the problem persists, call your HVAC technician. Once the temperature is reached, the inverter compressor in the outdoor unit will slow down and eventually stop. We have written an in-depth buying guide of air filter, check it. If the compressor fails, the entire HVAC unit won’t be able to function effectively. In heat mode for about 5 minutes everything works okay then the system changes to cool mode. There are several things you can do to optimize the heating effectiveness of your unit: Make sure the mode switch or selector switch is set to HIGH HEAT and the Temperature Control to a higher number. Then it will turn the auxillary heat on until the house warms up to the correct temperature. It requires a license to handle refrigerant and special equipment to know when the system is properly charged. If you’re looking for an HVAC contractor for your new commercial construction project, it’s important to vet... How can you tell if your HVAC system needs emergency servicing? When the desired room temperature is reached the compressor will stop, but the circulation fan will continue to run. Today we’re going to talk about why your air conditioner might start to blow warm air and what you can do about it! It depends on whether the issue... Cafco Services In this blog post, The Ice-Man, the top AC repair company in our local area, explains why your AC or heat pump is blowing warm air even when in cooling mode. When temp drops it then pumps hot air again. This “hot then cold air” sequence happens over and over and your home isn’t warming up. The Frost Fix Get a new filter and install it in the next day or two. The Nest Thermostat defaults to an O orientation for heat pumps. If you have a heat pump system, it's possible that your O/B reversing valve may be energized on the wrong setting. If the heat pump isn’t blowing cold air when operating in the cooling mode, ... especially when it is really hot outside, ... Again, the heat pumps are meant to run continuously (for some time) to warm or cool the house. If the heat pump turns on when you want cool air, but not for heat, this is likely the cause. Rebecca, if I were close to where you live, I would come out and take a look at your system and … Your heat pump or air conditioning unit has an air filter to protect its interior components from dirt, dust and other particles. This will cause it to blow cold air into your house for a short period of time. Try setting the temperature 2 to 4 degrees above room temperature. Leave the default setting to “ o.” If you have a heat pump, and you notice that your system is cooling in Heat Mode, and heating in Cool Mode, change from the default setting to “ b ”. Gently rinse away debris from the coil. A furnace typically puts out air at around 130 degrees, whereas warm air from a heat pump is only a little over 90 degrees on a moderately cold day. Defrost issues can be caused by faulty relays, controls, or sensors. There, the heat is released and dispersed by the heat pump fan. When your heat pump produces warm air, the air blowing out of your vents will be somewhere in the 85 to 92°F range. Cooling occurs due to evaporation on the coils. A refrigerant line carries hot refrigerant outside where it enters the radiator-style outdoor coil. Dust, grass clippings, pet hair and a thousand other types of debris cling to coil fins. The problem could be your thermostat settings. Cooling occurs when it takes the refrigerant from the evaporator coil and converts it into a high-pressure gas, which then flows to the condenser coils. Cleaning both coils is usually part of a comprehensive maintenance service. This is plenty warm to heat your home to your desired 72°F. No issues using heat. Simply flip the thermostat setting back to “cool” and see if the air conditioner begins to blow cool air again. Monday - Friday A heat pump blowing hot air in summer isn’t doing you any favors. By themselves they won’t cause warm air to blow, but they will  contribute to the issue and affect the HVAC system’s health and performance significantly. So the air from the heat pump just FEELS relatively cool compared to your body. Heat pump blowing cold air in heat mode. They will give you both repair and replacement estimates to compare. So it’s midwinter and you notice that your heat pump is blowing cold air. Get help with your home improvement projects. This happens when the temperature at which the unit is trying to blow falls below the freezing point of water. Air filters filled with dirt and debris don’t allow for proper airflow. And because the heat pump switched to cooling mode, it will blow cold air into your home for a few minutes. There Is Nothing Wrong At All. Well this could be caused by several things. Select EQUIPMENT. It happens to all of us. Most homeowners leave this work to an HVAC technician. In other words, it's not putting out any heat at all. Hi everyone, I have a 1-year old GOODMAN 2.5 Ton, 13 SEER Heat Pump. If the valve is malfunctioning, your heat pump will only work like an air conditioner—just cooling. 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. So 85-92°F feels cold to new heat … If your heat pump is blowing some cold air, there are a few things that may be going wrong. Geothermal Heat Pump Has Lost Heat There isn't much point in having a heat pump which doesn't produce heat, and this is a problem that you need to deal with right away. Running in Cool Mode: During cool mode the fan circulates air and the compressor runs to actively cool the room. That ability is hardly helpful, however, when you turn it on during the summer and it will only blow hot air. Others require help from an experienced HVAC professional. Broken reversing valve: As the name suggests, the reversing valve allows the heat pump to work as both a heater and an air conditioner by reversing the direction of the refrigerant. Luckily, almost all of them are an easy fix for a certified heat pump repair team. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached. If you’re going to install a new heat pump or AC unit, make sure that its breakers can handle the current. If it’s super dirty and you can’t get much debris off it, your HVAC system will be OK without a filter for a short time. 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. My air conditioner lacks of gas. You May Need Professional Help to Address: Coolant levels. Once you notice this problem, the first thing you should do is check the thermostat. It gets HOT here in the Coachella Valley, and we put a lot of faith in our air conditioners to keep us cool during the summer months. It will be warm enough to defrost the coil. Cleaning both coils is usually part of a comprehensive maintenance service. This is another simple fix to a heat pump not cooling. If you own a heat pump, there’s a good chance that part of the reason you installed it was to take advantage of its ability to both heat and cool a home. Sometimes the air feels hot, just becasue it is not being "cooled" at all, can be circulating thru warm ducts. There is no need for concern here—it will begin blowing warm heat again. 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