Home Not Properly Insulated
A home that is not properly insulated could be the reason for your ac blowing cold air but your house still hot.
If your house isnt properly insulated or whose insulation has deteriorated with age could easily absorb heat from the outside into your home and the other way round.
You need to look for cracks and gaps and seal them off.
Window Air Conditioner Not Cooling
8. If you have a window air conditioner in your house, to cool a room properly, make sure the window AC is installed properly and that air can circulate around it. If the window AC is not installed properly, it will not cool as designed. Make sure the seal around the window AC is not letting in any hot air from outside. Be sure there is nothing to close to the window AC unit so air can circulate as needed.
If you have an older AC unit with a compressor that is having problems or you just cannot figure out why the AC does not blow cold, then the AC may need professional maintenance. There are many other possible causes for the not blowing cold air issues. Some are quite complex and and we recommend contacting a professional HVAC service company to give you a quote if the above info did not solve you problem.
How Does An AC Work?
NOTE: Remove power to the AC when troubleshooting. Some AC repair should always be done by a professional HVAC Heating Ventilation Air Conditioning expert. Changing out a faulty capacitor for the compressor is an easy job if you know what you are doing. If you know you have air conditioner compressor issues, it is best to call a professional to come have a look and give you a quote.
Have questions after trying all the above common methods for fixing your AC to blow cold air? Leave a comment below with how we can help you, please give us your AC unit model number and your thermostat type.
Increase Airflow To The Second Floor
During summer, partially or fully close the dampers for the first-floor vents to force more air to the second-floor vents. If you cannot locate the dampers or your HVAC unit does not have them, you can close the registers on the first floor.
Read this article to learn more about fixing HVAC airflow problems.
Also Check: Pros And Cons Tankless Water Heater
Why Is My Air Conditioner Not Cooling My House Below 80 Degrees
So, you set your AC thermostat below 80 degrees but noticed that your air conditioners having trouble reaching your set temperature. In fact, it seems your AC has trouble hitting any temperature below 80 degrees.
And youre getting a little hot and bothered .
So, whats the issue? Well, certain problems can prevent an air conditioner from properly cooling down your home including:
- A dirty air filter
- Leaky ducts
- An older AC
But heres the tricky part: theres always the possibility that nothings actually wrong with your AC maybe youre just pushing the limitations of your system.
So how do you know which is your situation? Well, you can start by checking the outdoor temperature when you notice your AC struggling. See below for a more in-depth explanation.
Need a tech to figure out the problem ASAP? Just contact us and well send one right over.
Ac Not Cooling Upstairs Heres How To Cool The Upstairs Of A 2 Story Home
Is the scorching summer heat not letting you get a good nights sleep? Even worse, is your room on the second floor and your AC is not cooling upstairs?
A hot second floor is a common problem during the summers. You may have noticed that your air conditioner upstairs is not cooling as effectively as it is downstairs.
It can be really frustrating, especially when the temperature goes beyond 85F. However, there is no need to shift to the first floor yet. There are a lot of things you can do to keep your upstairs cool.
Keep reading on for some fantastic tips on how to make upstairs cooler.
You May Like: In Wall Heat And Ac Units
A/c Not Cooling 7 Diy Tips To Fix Your A/c
When the temperature starts to climb, most people rely on their air conditioning system to keep their home cool and comfortable. So, when your air conditioner stops working correctly, youre bound to notice the problem right away. And youre going to want to get it resolved just as quickly.
There are many common issues that can cause your air conditioner to work harder. Whats more, A/C units that work harder often consume more energy. Fortunately, air conditioner problems are often easy to diagnose and quick to fix, especially with the help of a professional.
The most common A/C problems and how to fix them
How Air Conditioner Works
The air conditioner is a device that extracts heat from inside your home and transfers it to the outside, helping you stay cool during hot weather. This process starts with refrigeration. Refrigerant is a chemical that changes from liquid to vapor as it absorbs and expels heat energy. Your air conditioning system uses refrigerant to extract the heat from inside your home and release it outdoors. Now you have cold air circulating throughout your home.
How does this happen?
The warm indoor air is drawn into the return vent, passes through a filter and is blown over the evaporator coil. The refrigerant cycles through the evaporator coil absorbing the heat from the air, turning the refrigerant from liquid to gas. Now that the air is cool, it is blown back into the house.
Next, the refrigerant travels to the compressor within the outside unit, where the compressor increases the refrigerant’s temperature. When the super hot vapor refrigerant reaches the condenser, the last step.The refrigerant passes through the condenser coil and releases the heat outdoors. As the refrigerant cools, it changes from a gas to a liquid again. It is now ready to go through the cycle again.
You May Like: Lower Back Pain Ice Or Heat
Ac Not Blowing Cold Air Due To Basic Electrical Issues
Lets first cover the basics. All air conditioners require access to electricity to prevent them from blowing warm air. If the compressor is not getting adequate power, it would be able to compress the R410A or R22 refrigerant. The consequence will be no heat exchange and it will result in the air conditioner blowing same-temperature air.
First, check the cables. The power cable has to be correctly plugged into the outlet. Make sure youre using the correct voltage. Smaller AC units require 110/120V while bigger units will require 220/240V. Also check if any of the power cables have been damaged.
Who doesnt plug in their air conditioner?
Thats the common response. The reason for check the power cables is because air conditioners require a surge of power when starting and when the rotary compressor starts working at 100%.
Everybody has an air conditioner plugged in. However, when the surge comes, two things can happen:
Its likely you wont notice either the blown fuse or 30A breaker tripped. What you are likely to notice is that your air conditioner was blowing cold air and all of a sudden the air conditioner stopped blowing cold air.
To fix basic electrical issues that might be causing the problem, check if the fuse is blown or if the amp breaker has been tripped.
If everything works OK, check the thermostat:
Faulty Thermostat Preventing Ac Unit From Blowing Cold Air
The thermostat is the central hub for your air conditioners. Thermostat issues can be categorized by difficulty:
- Basic: Thermostat is not set at adequate temperature.
- Intermediate: Thermostat has empty or almost depleted batteries.
- Hard: The thermostat is not properly wired.
To check if the AC unit is not blowing cold air due to basic thermostat issues, lower the temperature on the thermostat to the minimum . That should produce the lowest output air temperature from the indoor air handler if its still not cooling properly, you can check the basic thermostat issue of the list.
Batteries in the thermostat can also be one reason why AC is not blowing cold air. It might sound basic but batteries in the thermostat can be quite fickle especially when there are near depletion levels. Near depletion, the thermostats control panel can still show you 70°F but the battery simply lacks the energy to communicate that setting to the air conditioner unit adequately. Consider changing the batteries.
A mistake in thermostat wiring is one of the most problematic causes of the air conditioner not blowing cool air. This mostly happens with the newly wired AC unit. If your brand new air conditioner isnt blowing cold air, it might not be properly wired, or the wires have not been properly fixed in thermostat sockets.
Recommended Reading: Whats The Best Ac Unit
Ac Blowing Cold Air But House Still Hot
Is your ac blowing cold air but house still hot? There could be quiet a good number of reasons for this problem. But when you have an ac that is blowing cold air but not cooling your home, it could be a sign that:
- You have open doors and windows
- Your house isnt well Insulated
- You have an undersized air conditioner unit
- your ductwork is leaky
- You have failing condenser fan motor
- Your ac capacitor is dead
- You have a dirty air filter
In this article, well look at the common issues that could prevent your ac from cooling your home even though its running. Lets take a look.
Contact A Carrier Hvac Dealer
Thermostat not reaching the set temperature? If you reach this conclusion and youve exhausted the options outlined previously, its time to call a Carrier HVAC dealer. Its important for your comfort, but also for the health of your AC system. Continuing to run your AC when its not properly cooling your home can take a minor issue and turn it into a major component failure or system replacement.
You May Like: Cost To Install Water Heater
Hvac Troubleshooting: Why Your Ac Unit Is Not Cooling
When you have a running compressor, but your air conditioning unit is not producing cool air, there are potentially a number of things that could be causing this problem. The first areas that should be checked and cleared can be completed easily and quickly. These are fixes which should be accessible to any home owner. Other do-it-yourself options are also available to home owners with more advanced handy home maintenance skills. If these options are expended, it may be time to bring in a professional HVAC technician to further diagnose what to do when your air conditioner is running but not cooling.
Examine The Air Filter
While it may sound like a surprise, a dirty air filter can significantly impact your cooling system. That said, its best to consistently check to see if these are dirty, then replace them if needed. While your air filters job is to trap dirt, dust, and other airborne particles, they cant work properly if theyre filled with debris. As an air filter helps to keep these particles out of your home, they also aid in preventing this debris from infiltrating your systems components.
If you have central AC not blowing cold air, take a look at your air filter. But before checking it, make sure your system is powered off. From there, remove the filter and take a look. If everything checks out and the filter looks clean, proceed to the next troubleshooting tip.
Recommended Reading: Best Recliner With Heat And Massage
Your Thermostat Isnt Cooperating
Is your air conditioner not cooling? The first stop is your thermostat settings.
You should make sure that your thermostat is not only set to ON but that it is set to COOL. Test that its working by setting the thermostat several degreescooler than the stated temperature. You want to feel that chill! If this fixes it, program your desired temperature setting.
If you can hear the air conditioner running, but minutes later still dont feel any cool air coming through the vents, there could be something wrong with your thermostat and its electrical wiring. Fixing that problem is best left to a professional.
Dr. HVACs Note: You should also make sure all your windows and doors are sealed shut, and your supply and return vents are open and unblocked. Its little things like this that are easy to forget about but super easy to fix.
Reason : Your Outdoor Ac Unit Is Clogged
Branches, leaves, and shrubsoh my! Your outdoor AC unit weathers every storm or gust of wind so theres a chance the elements have caused a bit of build-up.
While a few twigs are usually harmless, debris on or around outdoor AC units can overwork your system, which can cause it to overheat and not work properly.
Recommended Reading: Comfort Zone Heater Not Working
Nothing Worked What Now
If none of the above worked then youre going to need the help of a professional. If its a really hot day outside, even a properly sized AC unit can struggle to cool your home, but if you are consistently having trouble cooling your home, you may have an undersized system. Either way, its time to enlist the help of an expert to solve your AC problems.
Is Your Central Air Running But Not Cooling
Just because your AC is running does not mean it is adequately cooling your house.
However, just because you have a warm house, does not mean your AC isn’t blowing cold air.
Do some simple checks at the start before you call in a repairman.
Check Your Filter
Every month, check your air filter.
Clogged filters will restrict airflow and slow down the function of your air conditioner.
A clogged filter will also prevent your air conditioner from removing excess moisture.
Humid air holds heat.
So if your AC cannot remove moisture, your home will feel warmer.
Also, a clogged filter will tax your HVAC system.
It may even cause your entire system to seize up and freeze.
It will damage one of the more expensive appliances in your home.
Do You Have the Right Air Filter?
You may have a clean filter, but if you have the wrong-sized filter, your AC will not run efficiently.
Filters come in all sizes.
Read the manual for your HVAC system.
You need a filter with the minimum efficiency reporting value, or MERV, that your HVAC system requires.
Make sure you have your filter installed the correct way.
In some systems, you can put your filter in backward.
A backward filter will not capture the dirt, humidity, and other particles you need it to capture.
Your HVAC system will not function properly if you put the filter in backward.
Clean Your Unit
You may just have a filthy unit.
If you have a dirty and clogged condenser, evaporator, or coils, your HVAC system will not work efficiently.
Recommended Reading: Water Heater Pilot Light Won’t Stay Lit After Replacing Thermocouple
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 >
Clogged Expansion Valve Or Orifice Tube
Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. The function of both expansion valve and orifice tube is the same, to restrict the flow and reduce pressure of the refrigerant before it enters the evaporator coil. Both of these are at risk of clogging due to contamination, for example due to metal shavings from a failing compressor.
In case of contamination, you may have to flush out the contaminants from the AC system of your F-150, including the condenser and the evaporator, before putting in the new part. In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor.
Also Check: How To Turn Water Heater On
Is Your Ac Not Blowing Cold Air Weve Got The Perfect Fix
Are you over summer heat? The Sealed team can help.
Your house may be eligible for an energy-efficient upgrade plan from our comfort and climate control experts, at no upfront cost.
If you want to update your old HVAC system or simply make it feel great all year, our customized plans are tailored just for your homes needs. Plus, our whole-house approach has been proven to cut a homes energy use by up to 50%.
We take care of everything: creating your custom plan, hiring certified home performance contractors, and making sure the work gets done right.
Discover for yourself how amazing your house could feel after working with Sealed. Its as simple as taking a two-minute quiz to see if your home qualifies.
What Makes A Car Ac System
Just like any visible part of your car, its hiding parts are just as crucial to maintaining in every manner. One can never tell when a machine stops working, but we can make sure such occurrences probability to lowest by maintaining them.
So before you go out looking for a solution for car ac not blowing cold air, let us get you familiar with the different parts that comprise your cars AC.
Don’t Miss: Ac Won’t Stop Running