Why is my Air Conditioner not Cooling?

Air conditioners are the most common appliances across the world. There is a reason why homeowners spend so much money on effective air conditioning. It can be unbearable to absorb the heat of the summer. A dependable AC makes your home cozy. But, have you ever turned on your AC and asked, “Why is my Air Conditioner not cooling?” It can happen without warning, and it’s not always easy to figure out why. But don’t worry. Because the air conditioner is running but not lowering the temperature, it is unnecessary to repair or replace the entire system.

Air Duct Cleaning

Air Conditioner is running but not lowering the temperature

From fundamental issues like a set thermostat or a dusty filter to a more severe problem that needs replacement. There are many reasons why your AC is running but not lowering the temperature in your home. Here, we’ll go over many things you should look at before calling HVAC Cleaning in Norcross, GA.

Wrong thermostat set

First, check the thermostat settings when you feel it but not lower the temperature. Check that it is set to cool. When the thermostat is cool, be sure someone does not adjust the temperature setting. If it’s off, turn it back to cooling or set it to a continuous fan (often labeled as ‘on’). After the system starts, wait a few minutes, check the registers to see if the cold air blows. If it’s cold, there’s no need to worry! If not, proceed to the next step, which is to inspect the air filter.

Dirty filters

An air filter in or around the indoor air handler unit may be part of your air conditioning system. As dirt, dust, and other airborne particles enter the air handler unit, the filter traps them. It keeps the system’s components cleaner and more efficient. Moreover, it can help keep the air in your home cleaner as well. A clogged air filter can block circulation and impair cooling in your home..


If your thermostat is working, but you still don’t have cool air, check for your system’s air filter. Then switch it off, remove the filter, and inspect. After reviewing that you have a clean air filter, you still feel It. It would help if you looked a little closer to find the source of the problem.

Reasons Why is my ac running but not cooling.

There are many reasons why my ac is running but not cooling. Some of them are technical issues, while others are not.

Poor coolant

The coolant runs through the evaporator coils. It cools the air that passes over it and finally distributes cool air into the room. As a result, when the level of this coolant falls below a certain threshold, the AC fails to cool. At this point, contact Air Duct Cleaning in Norcross, GA, for a coolant top-up and refill.

Defective Compressor

The compressor is the heart of an air conditioning machine. It handles cooling your space. If the AC isn’t cooling, the compressor is broken. The compressor is a motor that compresses and circulates the refrigerant or coolant. It is via the evaporator and condenser coils. If the compressor fails, the cooling cycle does not begin, and the AC does not cool.

Defective parts

Technical reasons for AC not cooling includes;

  1. a faulty compressor run capacitor
  2. a faulty control boards
  3. a damaged thermistor
  4. a clogged capillary
  5. a malfunctioning motor

High temperature in the atmosphere

An air conditioner has an ideal temperature at which it performs best. If the temperature rises above the perfect temperature, the air conditioner’s performance declines. Sometimes the outdoor temperature is so high that the compressor shuts down completely.

AC that is too small

A standard error is that people buy an AC on their budget, not based on space requirements. In peak heat, a tiny AC in a large room will struggle to keep the space cold. Thus the size of the AC should be proportional to the size of the room.

Defective air conditioning remote

It is also possible that the remote fails to relay temperature change signals to the AC unit. A simple remote replacement will help.

You have missed proper maintenance.

Poor maintenance is a common cause of an AC system’s inability just like dryer vent maintenance, to provide cool air. Sure, you can maintain the various elements of your air conditioner clean. But you will still need to select the correct HVAC provider to inspect the system. An AC specialist examines the sections of your AC that you can’t reach during this tune-up.

Need help with the AC running but not lowering temperature?

The next time you wonder, “Why is my ac running but not cooling?” you’ll be able to identify the issue immediately. The good news is that many of these issues are avoidable or curable. But, if you are unsure how to solve the problem, it is better to contact HVAC Cleaning in Norcross, GA, for help.

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