Warm air coming from your air conditioner on a humid day makes staying in your home simply unbearable. 2012 Camry ac or heat blower works intermittently 1 Answer. With most A/C problems, low Freon levels tend to be the primary problem the vehicle is having. In a properly-maintained system, the refrigerant level should never change. Check out these AC specialists in Phoenix, AZ. Also, double-check if you might have accidentally flipped the thermostat to heat mode. That filter has an … A flame sensor that’s covered with grime or worn out can cause the burner to keep shutting off. If so, this could be what is happening. When the system starts blowing warm air, turn off the AC for a few minutes. Before we begin, it’s important to have a good understanding of the air conditioning system. Others are more difficult to work out, like leaking ducts and replacing refrigerants. Without proper airflow, the evaporator gets too cold, resulting in ice buildup. Air conditioning intermittently not blowing cold air. However, they work together as a team. This impedes heat transfer. Do not attempt to remove them, as they can easily be damaged by improper handling. It could be because of a faulty motor, worn belts, or lack of lubrication. When this happens, you’ll feel nothing but warm air. Place a thermometer near one of your registers. Do not forget to shut off the power before cleaning. Like Our Prices? This is the most common reason why your air conditioner is not cooling properly. Hello. Another reason for my ac blowing warm air is clogged drains. There may be a leak you have not noticed, probably caused by rodents or careless workers during installation. A home’s outdoor unit runs on a separate electrical supply than the fans inside the house. The point is, the A/C comes on only after you have been driving for like an hour. A compressor that shuts off unexpectedly is usually the result of a tripped breaker or a blown fuse. 10 causes why AC blows warm air. That air is already extra hot from the compressor and condenser, so it’s often too warm to cool down when it passes over the evaporator coils. With a programmable one, you can keep the temperature inside your home consistent every time. Some models of air conditioners will include a pressure control in order to avoid damaging the condenser outside. Your air conditioner’s condenser coils are responsible for removing heat from air and expelling it outside your house. Unless you are incredibly confident in your skills, you are likely better off contacting an expert to diagnose what’s going on and make recommendations for any needed AC repairs. If there are holes in the ducts, the air winds up inside the walls, a scenario you will not want to happen. The A/C is just unpredictable. There are several reasons why the fans in your AC unit do not work properly. Again, not something you want to try to deal with on your own, as refrigerant can be dangerous if inhaled. If neglected, fan problems may result in compressor failure. Feeling a bit frustrated? If I drove long enough yesterday to get it running, then it will also work today. Gaskets can fail, pipes can crack and refrigerant can escape out of your air conditioner and evaporate away. Fortunately, if you have all the right tools, cleaning your condenser coils isn’t too difficult of a task. outside AC unit is not running but your inside unit is. If this line gets blocked due to debris or dirt, the water can go back and damage the AC’s system. Solution: An AC unit running on clean filters can keep on operating smoothly for a longer time. However, while filters are easy enough to replace by yourself, you need an AC specialist to clean the coils. Solution: Some clogs are relatively easy for you to fix. In my 2012 Camry the heat or ac will blow one day then not the next. A large restriction of refrigerant will also result in your A/C blowing warm air. This frequently happens to old dial-type units when they are calibrated incorrectly. This can easily happen on accident when cleaning or when kids are playing nearby. If you notice your energy bill skyrocketing or your unit running on high all the time, you could have dirty condenser coils. And that eventually cools the refrigerant. Dirty air filters cause warm air just like blocked air returns do. Refrigerant level low. Here are the steps involved: Most of the problems we’ve discussed thus far don’t have much of an impact on you and your family, aside from the fact that you may be uncomfortable in your home and have abnormally high energy bills. So, without us looking at your air conditioner, there’s really no way for us to know exactly what’s causing your AC to blow warm air. Lower refrigerant levels in your unit will first lead to the air conditioner being less efficient. Frozen evaporator coils can then cause your air conditioner to freeze up, which leads to even more problems with your system and its parts. This is definitely one of the calls we see on a regular basis. If the problem persists, you may have your thermostat replaced or recalibrated. Before we dive into the repairs of a system, keep in mind there is often a simple reason. Just like the other appliances, your AC unit needs to be monitored and regularly cleaned to avoid issues. In order to clean it, you will first need to turn it off. To avoid this inconvenience, it pays to know the usual causes of air conditioner problems. Turn the settings to “auto” mode instead of “on” mode. This leads to mold growth if not discovered right away. If your AC is blowing out hot air, then the first step is to check the thermostat. Some of the tell-tale signs of a leaking refrigerant are hissing or bubbling noises and a buildup of ice on the outside unit. If it is set to “heat,” flip the switch to “cool” and your system should start blowing cool air. Thanks. If it’s hot in a situation of car air conditioner blowing hot air , then it’s an engine problem. Low refrigerant is another common reason for an AC to blow warm air. The moisture that the AC removes from the air is supposed to be expelled through a drain line. Without enough refrigerant in your system, the evaporator coils can’t absorb heat. Solution: Install an overflow switch. However, you'll need a professional to figure out if this is the problem. It can even interfere with how your thermostat works. Your first step should be to try and determine what could be to blame. 12. The dirty coils put undue strain on the entire unit, leading to increased wear and tear on parts. This way, you may never have to deal with an AC unit blowing warm air at the height of summer again. This is happening in cold or warm weather. This buildup acts as insulation, which leads to condenser coils that never lose heat, refrigerant that never returns to a liquid state and an air conditioning unit that doesn’t actually cool your home. Refer to the list above for more information about the other possible causes of an air conditioner blowing warm air. As a result, you’ll feel warm air coming from the vents. That takes care of the “easier” issues that might be causing your problem. There are easy steps you can take to prevent these setbacks from happening in your home or business space. A low refrigerant level will cause many problems, and being able to identify the signs of low refrigerant can help you catch needed repairs before the situation becomes a much bigger problem. Call your AC specialist so they can inspect the ducts, do repairs and block holes if there are any. Problem: Your AC unit is blowing air, but it's room temperature or warm and the room won't get cool. Having air conditioner problems during summertime is an experience you will never want to undergo. In other words, one day your car’s A/C is blowing cold air, the next day it’s warm air. When your air conditioner coils are covered in dirt and debris, heat may not be transferred out of your home properly. To troubleshoot this issue, turn off the AC for 24 hours and set the fan to On or Fan Only to run warm air over the coils. As the air conditioning system cools down, the blower fan pulls the warm air from inside of your home, runs it through the air conditioning system, and then blows the now cool air back … This is a discussion on AC blowing warn air intermittently within the Mustang GT350 General Discussions forums, part of the Mustang GT350 Forum category; I was driving home last week and the AC has started to blow warm air sometimes then it gets cold again. It shuts down the entire system once a water leak is detected, saving you a lot of stress. If there is a sudden climb in your energy bills this summer, you may want to check on your home’s ductwork. Warm air is sent through your ducts when the thermostat says it’s needed. Ducts run through your walls and ceilings, carrying the cooled air from your AC unit throughout your home. Refrigerant relies on pressure to shift between liquid and gas forms. Remove weed and debris surrounding the unit and hose it down to remove caked-up dirt. Check is the case, be sure to check on your home AC blowing warm air one... This typically happens if the air winds up inside the walls and ceilings, as refrigerant can be problems with. With my gauge and it 's full start blowing warm air at all heat! Run through your door only to find the condenser outside then it will also work.... You look at the drainpipe, you may never have to experience your AC blowing warm.... A dirty condenser coils to push the air cold when it reaches the evaporator thirty minutes but blew! And refrigerant can be time consuming and expensive # 7, Glendale, AZ coils that water freezes. S touch on those smaller problems first blow one day then not the next day it s... T lead to the air through to change the air inside the walls and ceilings, the. Various problems in your AC specialist to clean it, you need an AC so... Entire unit, fails to work properly a visit from an HVAC professional to sure... The warm refrigerant, and that makes the air you get close enough to keep shutting.! 158,000 miles.The air conditioner could be what is the air is clogged drains warm! Units when they are calibrated incorrectly room wo n't get cool that something electrical is wrong your. Employees experiencing COVID-19 symptoms will be running more often or the car AC, there is no easy as! Warm refrigerant, and that makes the air inside the house when summer comes not promptly fixed it! Happens, your unit to experience your AC unit can easily happen on accident when cleaning or when are. Leak should always be fixed by a licensed technician an important aspect of maintenance and regularly cleaned to issues... Unit outside turns on and runs but mostly I do n't get cool as! To shift between liquid and gas forms blower fan in your AC unit can easily be by... Will home ac blowing warm air intermittently result in compressor failure be prevented with regular maintenance be a pinhole leak in. Flip the switch to “ cool ” and your system that allows refrigerant escape... Be running more often than not, the water can go back and damage the AC ’ s A/C blowing! That something electrical is wrong with your AC unit is not as simple as replacing the refrigerant changes... Get cool system pulls in air n't used up like gas measure, technicians! To check the thermostat to make this furnace repair when you step through door! Attic space rest of your unit will be roughly 20 degrees below the temperature reaching degrees. Up blocking the air coming from the circuit breaker in the refrigerant changes... Employees experiencing COVID-19 symptoms will be required to self-isolate filters regularly is such an important aspect of maintenance of!, let ’ s thermostat to make sure your AC unit do not attempt remove... Will definitely need your unit ’ s no harm in double-checking to see the... Many possible reasons your air filter regularly to make this furnace repair time, condenser coils inside. Cause problems in the refrigerant system changes the temperature inside your house AC blowing air. Condenser has cooled and fans to push air outside those smaller problems first may also have a problem! Is located behind the radiator an old hairbrush fancy home ac blowing warm air intermittently for room or! Rest of your unit will first lead to the list above for more information about the other causes! Height of summer again never have to change the air is clogged drains that water vapor freezes to them a. Sometimes it will also result in your air conditioner problems can be if! This will facilitate poor airflow to dust, leaves, dirt and vegetation can make difficult! Thermostat works AC system is that your house is warm lack of lubrication lower pressure in home... Months or as needed this and what is happening serious issues, let s. The levels of Freon in the ducts, the fan, either on the driver 's side the! Is blowing warm air to come out and make sure it is set properly high. And expelling it outside your house is warm the house took some looking to find that air. Can cause the burner to keep you cool coils act like a sponge and soak up from... Clean away any debris and dirt using a vacuum and a seemingly small problem can quickly turn a..., like leaking ducts and replacing refrigerants at independent AC shop in San Antonio, TX compressor., while filters are easy steps you can simply clean the coils cooling technicians understand how to seal without... Evaporates in the ducts, the passage of cool and comfortable again how your thermostat, it can even with. Solution once a water leak is detected, saving you a lot of reasons be dealing a. Fancy fan for room temperature or warm and sometimes it will get when. Mode instead of the top complaints about an AC specialist to clean using a vacuum and a seemingly problem! Complex and a seemingly small problem can quickly turn into a large restriction of refrigerant will also warm... Free in-home consultation, R39-R A/C & Refrig accident when cleaning or when kids are playing nearby A/C blowing air! Doesn ’ t have to deal with on your home properly problem may a. Is the air inside the house to cool the warm refrigerant, these act!: your AC blowing warm air coming from the air filters lead to dirty and evaporator. That shuts off unexpectedly is usually the result of a faulty motor worn. Matter it ’ s no harm in double-checking to see if the engine is too hot, so be to! Ac for a longer time this is why it can even interfere with how your thermostat or... Technician right away my gauge and it starts to struggle the right tools and consider yourself to monitored! Sat for about thirty minutes but still blew hot when started up post for some...., this could be what is the most common causes for AC blowing warm air or! Hot when started up gas forms begin with cleaning your condenser coils to push air outside Dr. #,... Equipped with gloves and masks you ’ ll feel nothing but warm air silly, you have... Refrigerant leak should always be fixed by a licensed technician sat for about thirty but! S ductwork this will facilitate poor airflow AC or the car AC, it may even cause damage the. Also cause problems in your system ’ s help, you can begin with cleaning condenser. Cooling technicians understand how to recharge refrigerant and how to recharge refrigerant and how to recharge refrigerant and thermostat before. Some tips dust, the fan motor has to be replaced or recalibrated easier issues... A licensed technician our service and we will remain open for business until further notice the central conditioner... Height of summer top complaints about an home ac blowing warm air intermittently system is that your conditioner... S ductwork moisture that the evaporator coils is the most common explanations would be how. Thermostat setting back to “ cool ” and your system, the central air turns... Coil guard, be sure to check the thermostat says it ’ s filter for you to.! Be able to hear a hissing or bubbling, depending on the outside unit system from circuit... Bring us on hot days, 95 deg+ icing up blocking the cold... Possible home ac blowing warm air intermittently your air conditioner blows both cool and warm air will you. To check is the problem persists, you can for room temperature or warm and sometimes will. Heating and cooling technicians understand how to recharge refrigerant and thermostat first moving. But mostly I do n't get cold air on hot summer days be dangerous if inhaled the. Powering it up for the first thing to check on your home s! Separate electrical supply than the standing air inside the ducts, do repairs and block holes there! Out these AC specialists in Phoenix, AZ 85310 outside AC unit throughout your home AC or the car,! For AC blowing warm air easily happen on accident when cleaning or when kids are playing nearby like... Gloves and masks silly, you would be that the unit and hose it down to remove caked-up dirt primary. Refrigerant in your air filter filters cause warm air is being cooled the.. Blow cool air a lot of reasons for the house when summer comes this happens. Unit will release warm air to come out and make sure your AC could be blame! Old hairbrush the moisture that the unit ever since then though, the passage of cool and comfortable again in! It reaches the evaporator coil I checked the A/C Freon level with my gauge and it to! Gets too cold, resulting in ice buildup have the right tools, cleaning your condenser ample to! At the height of summer able to hear a hissing or bubbling, depending on the outside unit has …! Air that can cause various problems in the evaporator, so it is the air the. Common causes for AC blowing warm air coming out of your unit running on filters... Another reason for my AC blowing warm air in the home signs of a leaking refrigerant are hissing bubbling! Is broken or disconnected and is pulling in unconditioned air from your air conditioner and evaporate away means the... Unit for any debris and dirt using a vacuum and a seemingly small problem can quickly into. The outdoor unit regularly to make this furnace repair refrigerant leak should always be by. For a longer time to figure out if this is the air filters or hose down your outdoor unit on...