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What To Do if Your AC Is Blowing Hot Air

Air conditioners are supposed to cool your home evenly and quickly. When your system only blows warm air or doesn’t seem to run at all, there’s a serious problem that needs to be fixed.

A lot of issues could plague an air conditioner. Even small, easy-to-fix problems can lead to warm air blowing throughout your home. Here are some common reasons why your AC isn’t working right and what you can do about it.

An ac unit outside

Common Reasons Why Your AC Would Blow Hot Air

While a lot of problems can occur within your AC system, here are a few of the most common ones:

  1. Dirty Air Filters

The air filters in your air conditioner are meant to catch dust, allergens, and other microbes so they don’t spread throughout your home. They also help keep the internal parts of your AC clean.

Air filters need to be swapped out with new ones occasionally, or air intake will slow down significantly. This can cause your HVAC system to work harder and struggle to cool your home.

  1. Thermostat Errors

Your thermostat is the brain of your HVAC system. It allows you to control the system, change the temperature, schedule changes, view usage stats, and more.

When your thermostat doesn’t work correctly, it may not respond to your inputs. If you turn the temperature down, it may turn the temperature up, and vice versa. A damaged thermostat could cause your AC to turn off and your heater to turn on.

  1. Frozen Evaporator Coils

The evaporator coils of your AC release humidity collected from the air inside your home during the cooling process. This water needs to evaporate outside of the home.

Believe it or not, this water can freeze on the coils, forming ice on your AC unit in the summer. With the movement of coolant through the system, this water can cool off before it evaporates outside, causing serious problems for your outdoor AC unit.

  1. Refrigerant Leaks

Refrigerant liquid passes through a series of pipes from your internal AC unit to the external one. Along the way, it collects heat energy from inside the home and drops it off outside.

There’s bound to be trouble when anything goes wrong with this coolant piping system. If your system leaks refrigerant, it won’t be able to cool your home’s air quickly.

Troubleshooting Your Air Conditioner

While a lot of problems can cause AC issues, many solutions could help. If you can’t get your system to blow cool air, try these troubleshooting tips:

  1. Change the Air Filter

A simple change of the air filter could resolve your air conditioning issues. Remove the old filter from the air intake and replace it with a new, clean filter to ensure your system isn’t getting clogged up with dust and allergens.

  1. Check the thermostat settings

Inspect your thermostat to see if the adjustments you make are being registered by the system. If it seems to be failing, you may need to schedule thermostat installation or repair with an expert.

  1. Thaw your evaporator coils

Check to see if your evaporator coils have ice on them. If so, contact a professional HVAC technician to carefully thaw the coils and remove the ice.

  1. Call SOS Xtreme Comfort to fix a refrigerant leak

If you notice liquid leaking from any part of your HVAC system, either inside or outside, it could be coolant. A pro can solve this problem by sealing the leak point and refilling the system.

Call an Expert to Fix Your AC

Since 1934, SOS Xtreme Comfort has been a family-owned, go-to choice for HVAC services in New York, New Jersey, and Pennsylvania. We only use the best equipment and install only the best products. We believe in upfront pricing, proper repairs, and total customer care.

Count on experts for professional AC repairs in NY, NJ, and PA. Contact SOS Xtreme Comfort today to get started.


Why did my AC stop working so quickly?

An air conditioner can run fairly well while there are underlying issues. When the problems become too much, the system may suddenly fail. No matter what occurred, our team can fix it.

How often do I need a refill on refrigerant?

Most AC units don’t need a refrigerant refill in their 10-15 years of service. Our team can inspect your system to see if low refrigerant levels are the cause of your cooling issues and provide it if necessary.

How often should I replace my air filters?

HVAC air filters should be replaced every three months. If your home seems particularly dusty or you have pets, higher-grade filters may be helpful, along with changing filters more often.

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