My Ac Wont Blow Cold Air

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Have You Been Changing Your Filter


You might not think your filter contributes to your AC not blowing cold air, but it does.

If you havent been regularly checking and changing your air filter, its most likely your ac unit has a dirty air filter that is now extremely clogged.

A central air conditioning unit with a clogged filter will restrict airflow into your home and cause damage to other parts ac units, like the evaporator coil. This means that you wont only notice a lack of cold air, but probably a little more dust and overall stuffiness due to airborne particles not being filtered out.

We recommend checking your filter every 30 days, and changing/cleaning it as needed. You can find out more here >

Four Reasons Your Ac Wont Blow Cold Air Through The Vents

by Jose Aguilar | Jun 4, 2020 | Cooling |

Are you ready for summer? Or, more importantly, is your central air ready for summer? If youve turned on your AC but didnt get any cold air blowing through the vents, the answer to both questions is No.

We see this problem every spring and summer here in Meridian, ID. There are some variations: Sometimes, theres no air pressure at all. Other times, its weak. Or, its coming through on full blast, but the air is warm.

The good news is that you may be able to fix the problem yourself.

In this article, well outline the top four causes of this problem. And, well let you know which ones you can handle without calling in a professional.


  • 2 AC Tune Ups Help Prevent Air Conditioner Problems
  • Condensate Airflow Switch In Off Position Due To Drainage Failure

    This is a less frequent cause of central AC not blowing cold air it might help some homeowners, however. We have already talked about the air conditioner being flooded when there is no adequate drainage. This mainly happens due to clogged drainpipes.

    Some specific air handlers have a built-in safety switch that turns the cooling off in an event of drainage failure.

    You can check if that switch is turned off. That might be the reason for no cold air coming from your air conditioner.

    To fix the AC not blowing cold air problem, just turn the switch back on.

    Of course, youre also recommended to investigate if there was any window AC leakage that switched it off.

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    What To Do If Your Air Conditioner Is Running But Not Cooling Your House

    Its no fun when the air conditioner doesnt work, however, it happens. And it wont be in the middle of winter as it happens. It will be the hottest day of the year, and no matter how low you set the thermostat, the air conditioner will not blow cool enough air.

    The condenser compressor outside your house is just part of an air conditioning system. An indoor air handler unit , an evaporator coil, air filter, thermostat, and copper tubing that link the indoor and outdoor systems are all common components of split-system air conditioners.

    So, to the debate, Why isnt my air conditioner cooling the house? There are a few options. But dont be concerned. Only because your system isnt cooling doesnt mean you have to spend a lot of money on AC upgrades or a new system.

    The majority of homeowners are capable of doing simple troubleshooting and will be able to fix the problem. There are times, though, that youll need to contact the nearest HVAC company for reliable air conditioner support.

    There are a number of reasons why your air conditioner could be working but not dropping the temperature in your home, ranging from basic problems like an improperly set thermostat or a dirty filter to more complicated situations requiring part replacement.

    Evaporator Coil Is Frozen

    Why Isnt My Car AC Blowing Cold Air?

    The indoor component of your central air conditioning system will include an evaporator coil. If your indoor unit is a furnace, the evaporator coil sits in its own cabinet, outside the furnace. If the indoor unit is a fan coil , the evaporator coil sits inside the fan coil cabinet. Warm indoor air passes through the evaporator coil where heat energy and humidity are removed from the air. Cooler, more comfortable air is then circulated back to your home. Signs of a frozen evaporator coil include:

    • Frost forming on the copper refrigerant tubing coming from the coil cabinet
    • Inadequate cooling
    • Excessive condensate drainage near your indoor unit
    • In extreme cases, frost forming on exterior refrigerant tubing or the outdoor unit

    Because accessing the evaporator coil is difficult, resolving issues associated with a frozen evaporator coil are best handled by an HVAC professional.

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    Thermostat Is Set Incorrectly

    When you notice your home getting a little hotter than normal, first check the thermostat settings. Be sure it is set to cool. If the thermostat is set to cool, check the temperature setting to be sure someone hasnt changed it. If it is off, set to heat, or set for constant fan , switch it back to cooling operation. After the system kicks on, wait a few minutes, then check for cold air blowing from the registers. If its cold, problem solved! If not, move on to the next troubleshooting tip checking the air filter.

    Ac Not Blowing Cold Air: 10 Possible Reasons This Happens

    The short answer is there are several reasons why your central AC unit might stop circulating cold air. Some are a simple AC repair, while others need the assistance of a professional. If your air conditioner is not producing cold air, there are a few things you can check to solve the problem. Of course, it’s always a good idea to call an HVAC expert for maintenance and repairs.For millions of people in the United States, these cooling systems are crucial to allowing them to endure with cool air throughout the summer months. The summer heat will only make indoor temperatures in your house hotter, resulting in health risks to you, your family, and even pets.

    You know you need to take immediate action and call for emergency air conditioning repair service. Identifying the underlying source of the problem within your central air conditioning unit and informing your contractor about it aids in resolving it. This data allows for a more effective repair procedure when the HVAC technician arrives.

    Here are some things to look for with your air conditioner not blowing cold air and how to fix the issue fast.

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    Frozen Coils Can Lead To Ac Blowing Colder But Not Properly Cold Air

    Ice buildup in the air conditioner is actually one of the most frequent issues we face. Basically, the parts in the interior of the AC unit freeze it as a consequence of a series of events all started by low airflow.

    Low airflow can be a consequence of primarily 3 things:

  • Clogged filters . Filters directly reduce the airflow due to less space available for cold air to pass through.
  • Dirty coils. Cleaning the coils helps in this case.
  • Low refrigerant levels .
  • Due to low airflow, the compressor will work extra trying to compensate for the loss of airflow, and parts of AC might freeze over. The result is that the air temperature coming from the indoor air handler will be lower but not sufficiently low.

    Before, the air was cooled by cooling coils with superb heat-exchange coefficient. Now, there is ice covering them, and ice might be cold but it has a much lower heat-exchange coefficient than AC cooling coils. As a result, the air output temperature might be up to 5°F cooler than room temperature but thats not cold enough in most cases.

    Changing filters or cleaning the dirty coils is useful but it wont fix the issue of the air conditioner blowing not blowing cold air immediately. First, you have to deal with the accumulated ice.

    Air Conditioner Leaking Water When Turned Off

    How to Fix Car AC that’s Not Blowing Cold Air

    If your system is low on refrigerant or has a dirty filter, the system may freeze up when its working. After you turn it off, the ice melts, causing it to leak water. Dont risk water damage from your air conditioner leaking water on the floor or ceiling. If cleaning your filter doesnt help, dont turn your AC system on again until you have identified and fixed the problem. As with outside leaks, you may have a blockage or a broken condensate pan.

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    Refrigerant Leak Preventing Proper Cooling

    A refrigerant leak is a common and serious cause of an AC not blowing cold air. These leaks dont always occur suddenly. Neglecting to address them results in less cooling power.

    Your AC system should never be without an inadequate amount of refrigerant. Less refrigerant only occurs with leaks, as the fluid has no exit otherwise. Leaks can also cause mechanical problems in parts that process refrigerant.

    Symptoms indicating you have a leak include your AC:

    • Taking longer to cool your home than usual
    • Making a hissing sound during operation

    Repairing a refrigerant leak requires specialized training. Youll need professional repairs to resolve it.

    Top Frequently Asked Questions

    Why is my car AC blowing cool air but not cold?

    If your car ac not blowing cold air, then it means the system is broken. One of the most prominent causes of broken air conditioning is fluid leaks or blocked/broken compressors.

    However, if the system is blowing cool air but not cold, then there is a possibility for a clogged filter, radiator issue, cooling fan problem, or your ac needs a recharge.

    How much does it cost to repair a car air conditioner?

    The average cost in the United States to repair a cars air conditioning is $1,829. However, the value can differ based on the location, make, and model of your vehicle.

    Can a broken fuse cause AC not to work?

    YES. Electrical issues are seen as one of the major reasons for a car ac not blowing cold air.

    Is it worth fixing AC in the car?

    Well, that depends on the owner. If you live in a cold place that has cold weather almost throughout the year, having an ac that does not blow cool air is not a big deal.

    However, if you live in warm places where the sun is at its peak temperature, having the ac of your car fixed is worth it.

    Can you fix the AC in a car?

    If your car is facing loose wires, then you sure can fix the issue all by yourself. But if there is a leak or the compressor fails to work, you need professional help to do the repairs.

    How to recharge car ac?

    Easy steps to recharge the ac of your car:

  • Check if the compressor is running.
  • Examine the pressure.
  • Connect the intake manifold from the kit.
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    Fix Your Broken Ac System With Ars/rescue Rooter

    Is your air conditioner running but not blowing cold air? The heating and air conditioning experts at ARS/Rescue Rooter can restore cold air blowing into your house.

    Call ARS/Rescue Rooter now to schedule an appointment or find your nearest ARS/Rescue Rooter location for local AC repair in your area!


    Reason : Ac Unit Needs To Be Replaced

    Why Is the Heater in My Car Blowing out Cold Air and Not Heat ...

    Weve reached the biggest reason of them all: Youre due for an AC unit upgrade. Some types of AC units can last up to 20 years or more with regular maintenance and sufficient insulation and air sealing to keep the unit from being overworked.

    If your AC unit is still acting up after youve tried everything , it may be on its last leg. Discover the signs for when its time to upgrade your HVAC system.

    Get problem-solving homeowner guides, tips, and tricks for a more comfortable, efficient home with the Sealed newsletter.

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    Proper Maintenance Prevents Ac Not Blowing Cold Air

    As with any machine, your central air conditioning unit needs regular maintenance. Filters need to be changed and all other working components need to be examined by a professional.

    The standard recommendation is to have an HVAC maintenance tune up twice a year. This should happen in the spring and the fall. The technician can check your HVAC system and make any tweaks or repairs necessary before the weather gets hot or cold.

    This not only keeps your unit running efficiently, but it also helps reduce the risk of unexpected breakdowns and expensive problems down the road.

    Is Your Ac The Right Size

    An air conditioner that is too big or too small will wear out your air conditioner, and cause a whole bunch of problems. This includes no cold air.

    We have a comprehensive guide on air conditioner sizes that you can find here >

    Unfortunately, this is an issue that will continue unless you replace your air conditioner. If this is an option for you, we can help make sure you get the right air conditioner the first time.

    If replacing your ac unit is not possible at this time, talk to us about setting up regular maintenance appointments. We might not be able to completely solve your problem, but we can do our best to keep you cool and comfortable.

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    Need An Hvac Technicians Help To Diagnose The Problem Call Red Cap

    Contact Red Cap Airs highly-trained technicians if your AC is not blowing cold air.

    Our Red Cap family is committed to keeping you cool and comfortable in the heat of Floridas summers. If you need help figuring out whats wrong with your AC, well send over one of our trusted professionals to provide AC repair services and quickly fix the issue. Call us at 963-3056 or 474-8287 or schedule service online today!

    Where To Start When Your Ac Stops Blowing Cold Air

    Central A/C Not Blowing Cold Air(Not Cooling)

    When an AC unit stops blowing cold air, sometimes its tough to know where to look first. Heres a quick troubleshooting guide to help you pinpoint the root of the problem.

  • First: Always start with your thermostat. Nothing like checking your settings to find all you needed to do was turn it on.
  • Second: Check your filters. Not only do air filters keep the air in your home fresh and clean, dirty filters play a big role in your cool air flow problem.
  • Third: Use your senses. Notice any vibrating from your outdoor unit? Any shaky, noisy units, weird smells, or moisture around your AC system? These are all signs of a faulty AC.
  • Still unsure? You may need an HVAC professional.

    Got questions about your AC options? our expert team is here to help.

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    Incorrectly Sized Air Conditioning Unit Struggling To Cool Your Home

    Sometimes, an improperly sized air conditioning system leads to poor cooling performance. Especially small AC systems may never help your home reach the ideal temperature.

    If the unit is too small for your homes cooling needs, it will struggle to keep up with your temperature demands. The components dont have enough power to cool your home, while the thermostat continuously detects this failure to maintain the correct temperature. This cycle results in high energy bills in addition to your home never feeling cool.

    Rv Air Conditioner Not Blowing Cold: Heres How To Fix It

    Many motorhomes, fifth-wheel campers, and large travel trailers have some type of rooftop air conditioner.

    When something goes wrong with the unit, or it simply stops blowing cold air, it can turn your exhilarating vacation into a hot, sweaty nightmare.

    Has your RV air conditioner not blowing cold air? If so, there are a few things you can do to diagnose the problem. With some of these issues, you might be able to fix the problem yourself.

    This article well look at how an RV air conditioner works, as well how to check the various components of your RV AC and determine what is causing it to not keep you cool.

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    Professional Help From Ace Auto To Keep You And Your Passengers Comfortable With Cool Air

    If your car ac unit is not blowing cold enough air in Utah , contact the ASE certified auto mechanics at Ace Auto in West Jordan Utah to quickly inspect and repair your AC unit. For an honest AC diagnosis and speedy repairs in West Jordan, schedule an AC repair appointment at Ace Auto or for a FREE repair quote. Our ASE Certified master mechanics are experienced technicians that are certified and can repair any AC system problem and have your AC working properly again.

    Dirty Compressor Not Compressing Refrigerant

    A/C Not Blowing Cold Air Through the Vents

    Despite having normal refrigerant levels, a dirty compressor in the outdoor unit is another reason for the AC not blowing cold air. As the compressor does its job of cooling the warm air, it causes the refrigerant to decrease in temperature. If the compressor is too dirty, it will malfunction.

    A malfunction results in the compressors failure to cool the warm air as it passes over the evaporator coil.

    While debris is one of the primary reasons for the compressor not working properly, rainfall, high winds, grass clippings, and pests are other common offenders that contribute to its shutdown. Mold, sludge, and other growth may also form and cause problems.

    To fix a dirty compressor, contact an HVAC professional. Theyll clean it for you .

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    Ac Not Blowing Cold Air : 8 Common Causes + Fixes

    My air conditioner is running but its not blowing cold air. What might be the problem?

    When air conditioners malfunction, not blowing cold air is one of the most common problems. There is nothing worst than looking at the AC running but not cooling . Youre spending electricity and sweating in your home at the same time.

    About 20-30% of homeowners experience the air conditioner not blowing cold air problem. At first, it might seem like an inconvenience. Every air conditioner has one function to cool your home. It isnt not cooling your home, its not doing its job properly.

    Secondly, however, the air conditioner stopping to blow cold air while still running is something to be alarmed about. AC unit not blowing cold air might be an indication of a bigger problem .

    If this AC problem is not dealt with properly, running an AC that is not blowing cold air might put your whole AC in danger. When central AC is not blowing cold air, for example, you want to shut it off to prevent further damage to a $3000+ unit.

    Fortunately, there are a number of known causes for air conditioners not blowing cold air. They range from power issues to clogged filters, and dirty compressors.

    Below, we have summarized the 8 most common causes of why air conditioners stop blowing cold air. Dont worry. Any problem can be fixed, even the malfunctioning AC thats just blowing non-cooled air.

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