Isn’t your air conditioner pumping chilly air? The last thing you want to discover when you get up or return home is that your air conditioner is broken. This is not only inconvenient, but it can also pose a health danger to you, your family, and any pets you have at home. The air conditioner not blowing cold air is easy to fix.
5 Reasons Your Air Conditioner Isn’t Blowing Cold Air
As soon as you become aware of an issue, you should take immediate action. Do not wait until the heat is oppressive to take action. When in doubt, schedule an HVAC service call with a professional. There are several reasons why your HVAC unit may cease circulating cold air. Some are straightforward and may be handled right once, while others necessitate the assistance of a professional. Here are some things to look for if your air conditioner isn’t blowing cold air, as well as how to solve the problem.
What Is a Central Air Conditioning System and How Does It Work?
Knowing how your air conditioner works may help you better understand what might be causing it to malfunction. A liquid refrigerant is used in your air conditioner. The heat inside your home is absorbed by this liquid as it flows over the indoor evaporator coils. This liquid becomes an ice gas after absorbing the heat. The fan of the air conditioner blows across the refrigerant-cooled coils, forcing cold air through the ductwork and into the house. The heat is carried back to the outside condensing unit by the refrigerant in gas form, which then turns into a liquid after releasing the heat into the external air. This cycle is repeated indefinitely to keep your home cool. Various things can go wrong with so many processes.
1. Low Refrigerant or Leaking
The chemical that sets the whole process in action is the refrigerant, which is most often Puron or R410A. The refrigerant could be the issue if your central air conditioner isn’t blowing chilly air. It’s possible that the unit is low on refrigerant and needs to be recharged.
A leak is the most likely source of this. A leak not only prevents the air conditioner from cooling effectively but can also cause additional problems in the house. When the temperature in your home isn’t cold enough, for example, humidity levels can rise, making it feel hotter than it is.
If you suspect a refrigerant leak, call a professional as soon as possible. It might be difficult to diagnose and repair these leaks properly unless the leak is large.
2. The Filter Is Dirty or Clogged
Filters that are dirty or clogged are another prevalent issue with air conditioners. Throughout the year, these filters operate nonstop to collect hair, lint, dust, and pollen. If they are not replaced regularly, they quickly become full.
When this happens, the air cannot flow properly into the home, and your air conditioner may stop down due to a lack of air. The indoor temperature climbs when the air conditioner isn’t working properly. Filters that have been blocked for an extended period might cause parts to wear out faster than they should. It can also harm the evaporator coil and condenser, causing a much bigger problem.
The filters should be changed every three months in addition to periodic cleaning. You may need to change it more frequently if you have indoor pets.
Indoor air filters should be simple to replace on your own. If you’re not sure which filter to use, an AC expert can assist you.
3. An issue with the evaporator coil or condenser has arisen.
Even while the filters listed above try their best to keep the coils clean and working at top performance, they will eventually wear out.
Mildew and even mold might grow on your indoor evaporator coil as a result of the persistent wetness. (UV lamps can help to protect you from this and keep your air cleaner.) Coils can also freeze if the refrigerant in the system is running low.
Issues with the coils will create a significant disturbance within the air conditioning unit and should be addressed as soon as possible by an HVAC specialist.
Over time, the condenser can also break down. Has this examined if your air conditioner isn’t blowing cold air and no other reason can be determined?
4. Registers that are blocked or clogged
A blocked or clogged register (or vent) can impede airflow in the same way as clogged air filters can. Air is drawn into the system by a return air register, and conditioned air is sent into the house through supply vents. Clogs in either of these areas are problematic.
The ventilation system extends throughout the house, and if there is a clog or a leak in the ductwork, the cooling will be affected. Your chilly air may be leaking out of your attic if there is a tear or hole in the ducting. Rodents in your attic, such as mice or rats, can wreak havoc on your ductwork and cause leaks, affecting the way your system cools.
Only the room with that vent may feel warmer than the rest of the home if something is blocking the air near the vent. That’s a sign that there’s a problem with the ventilation in the ducts that bring conditioned air to your home or office.
It’s also worth mentioning that a vent can close by unintentionally on occasion. Check to see if the supply vent is fully open if only one room is unusually hot.
It will eventually get to a point where your HVAC equipment will be more and more expensive to fix. When this happens, it’s time to think about getting a new system.
5. Thermostat Issue – AC Not Blowing Cold Air
All of the action begins with the thermostat. The air conditioner will not switch on until the room’s temperature rises above the control setting. The first step is to double-check that the thermostat has not been altered. Check to see if it’s on auto or cool. Occasionally, a thermostat will be adjusted to heat rather than cool, resulting in the issue.
If it’s set correctly but the air conditioner still won’t turn on, the problem could be with the thermostat. If it uses batteries, make sure you check them and replace them if necessary. If that doesn’t work, you’ll need to contact an air conditioning professional.
AC breakdowns can be avoided with proper maintenance. Cold Air Isn’t Blowing
Your central air conditioning unit, like any other machine, requires routine maintenance. Filters must be replaced, and all other operating components must be inspected by an expert.
An HVAC maintenance tune-up should be performed twice a year, according to industry standards. This should take place in the spring and autumn. Before the weather turns hot or cold, the expert can inspect your HVAC system and make any necessary adjustments or repairs.
This not only maintains your unit functioning well but also lowers the danger of unplanned breakdowns and costly problems down the line.
Expert HVAC Service Can Help You Beat the Heat
When the weather is hot, you’ll want to make sure your air conditioner or heat pump is working properly. If your air conditioner isn’t pumping cold air, it won’t be long until the inside of your home becomes unbearably hot.
There are a variety of factors that might create this issue, and they range from simple to complex. You owe it to yourself and your family to have an HVAC specialist come and analyze the situation if you are unsure what the problem is.
In the Richmond, Katy, and Fulshear, Texas areas, contact the courteous professionals at Terry’s A/C & Heating for skilled repair. We are a Carrier Factory Authorized Dealer, and we service all makes and models of air conditioning systems for both home and light business use.
We also provide a planned maintenance program to make taking care of your HVAC investment as simple as possible. Please contact us for additional information on how we can assist you to get the cold air moving again in your home. We’d appreciate the opportunity to earn your business.
What to Do If Your Air Conditioner Isn’t Blowing Cold Air
If your power is okay but your air conditioner isn’t producing cold air, it’s possible that the thermostat on your unit isn’t set to the right setting. To see if the device will start, turn the dial down or push the buttons to the lowest position. If possible, double-check that all wiring into the thermostat unit (and any batteries, if applicable) is correctly attached.
Filter that is clogged
If the filter becomes clogged, some air conditioners include a built-in mechanism that shuts the device down. This is to keep the motor from overheating and causing damage. It’s also possible that the filter is blocked and prevents appropriate ventilation. Check the filter in your unit and clean or replace it as needed.
The accumulation of ice
Ice buildup in your air conditioner might be caused by unclean coils or filters, which cause inadequate air flow, or a lack of refrigerant. Clean the filter and coils on your air conditioner to see if increasing the airflow solves the problem. If ice has formed, you’ll need to run the unit with simply the fan to melt it away. The refrigerant levels may be low if that doesn’t get the unit blowing chilly air again (see below).
Air conditioners take moisture from the air and drain it through a hose or drain pipe, which can become blocked with algae and cause the device to shut down. This is a vital safety element that keeps water from backing up and causing damage to your home or unit. Pipes can be replaced in some cases, however, they can also be cleaned with a mild bleach solution.
A compressor that is filthy
Cleaning the area around your compressor and covering it for the winter should be part of your routine maintenance. Leaves, dirt, and other debris can accumulate over time, causing the unit to malfunction. While some homeowners perform compressor cleaning themselves, for the best results, hire a professional. This ensures that your machine receives the correct cleaning and maintenance. Before starting any repair, make sure the unit is turned off.
Switch for condensate airflow
When the drain line backs up with water, certain air handlers have an incorporated safety float switch that trips and turns off the machine. If you check and find that the switch has tripped, you must reset it after cleaning the condenser drainpipe.
Refrigerant levels are low.
Coolant does not go bad or decrease, contrary to popular opinion; a refrigerant leak is a common cause of a lack of cold air. Slow leaks can cause refrigerant levels to drop over time, necessitating a line inspection and system recharge to start the system blowing cold air again. Because of the complexity of cooling systems and the chemicals involved, this should be done by a professional.
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