Top Reasons Your AC System Is Not Blowing Cold Air

Top Reasons Your AC System Is Not Blowing Cold Air

by | Apr 18, 2022 | Air Conditioning, Blog | 1 comment

Isn’t your air conditioner blowing cold air? Faulty AC in summers is not only inconvenient, but it can also pose a health danger too when the heat is in extreme condition.

As soon as you become aware of an issue, you should take immediate action. When in doubt, contact an HVAC expert near you to schedule a service appointment. There are several reasons why your HVAC unit may cease circulating cold air. Some are simple and maybe handled right once, while others necessitate the assistance of a professional.

Below we have mentioned popular reasons why your AC is not blowing cold air.

 1. Leaking or Low Refrigerant

The chemical that sets the whole process in action is the refrigerant. In most of the cases it is the refrigerant that is low or leaking. Any leak of the refrigerant will not allow your AC to cool down your house or room. When the temperature in your home isn’t cold enough, humidity levels can rise, making it feel hotter than it is. If you suspect a refrigerant leak, call a professional as soon as possible.

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 soon become clogged.

When this happens, the air cannot flow properly into the home, and your air conditioner may break 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.

3. Difficulties With Your Thermostat

Sometimes thermostat can also be a reason that your AC is not blowing cold air. Try troubleshooting your device and resetting the thermostat to the temperature you prefer. Check the batteries and make sure all wires are connected if your AC isn’t blowing cool air or none at all. If the issue persists, consult an HVAC expert for a proper diagnosis.

4. Broken Compressor

The air conditioner’s compressor transports refrigerant between the exterior and inside units. If the compressor fails, the interior units will not be able to blow cold air. As a result, it is common to have to repair a broken or malfunctioning compressor.

5. Dirty Outdoor Unit

When the heat from the inside is absorbed by your air conditioner’s internal unit (the evaporator), the heat is transferred to the outside unit (the condenser). If the condenser is unclean or clogged with debris, it must be cleaned to allow any trapped heat to escape. If you don’t, your air conditioner will struggle to keep your home cool. The simplest way to do this is to lightly spray the outside of the unit with a hose. With a high-pressure stream, be careful not to distort the metal fins inside.

6. Blocked or Clogged Registers

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 chilled 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.

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. Any blockage can cause a problem and will bot allow air to pass into the room.

7. Poor maintenance

Your central AC unit, like any other machinery, 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 repairs.

8. Blocked Condenser

The condenser is one of the most critical facets of an air conditioner, as it ensures that your home or office is kept cool. The condenser is responsible for supplying cold air to your room, and if it becomes blocked, you will begin to feel uncomfortable during the heat. If dirt and filth accumulate on this component, cold air will be unable to enter the area as needed. This will reduce the unit’s effectiveness, and you will become frustrated in the long run. Make sure to clean the condenser at least once a month to achieve the greatest results.

9. Ice buildup

Ice buildup in your air conditioner might be caused by unclean coils or filters, which cause inadequate air flow, or a lack of refrigerant. If there is an ice then 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 cold air again.

10. Clogged drain

AC takes moisture from the air and drains it through a hose or drain pipe, which can become blocked with algae and cause the machine to shut down. Drain pipes can be replaced in some cases, however, they can also be cleaned with a mild bleach solution.

Wrapping up!




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