Air Conditioner Not Cooling Effectively? 10 Most Common Reasons

Introduction

Very high indoor temperatures can make you tired and prevent you from working optimally. Very high humidity will act as a breeding ground for mold and bacteria causing health issues, especially allergic reactions and breathing problems. The best thing about an air conditioner is it reduces humidity in your home. Won’t it be frustrating if your air conditioner is not working when your house is hot and humid? What could be the reason for your AC unit not cooling? Let’s find out.

Why is the air conditioner not cooling?

Is your AC running still or blowing hot air? Are you sweating even when the air conditioner is on? There are a few common reasons like blocked drains, dirty air filters, thermostat issues, electrical problems, and a few more for your air conditioner not working. You can fix some minor issues on your own. Others need a professional repair and maintenance service.

AC not cooling: Check out these 10 common reasons

Has your air conditioner stopped working? One of the following reasons could be the culprit. Find the reason for your AC unit not cooling depending on the symptoms.

1. Thermostat issues

When the thermostat is not working it will not send the right signals to the AC unit. Symptoms of thermostat issues are AC not turning at all or turning on and off erratically.

2. Dirty air filters

Dirty air filters restrict airflow and affect the efficient functioning of the unit. Symptoms are AC not cooling evenly and high electricity bills.

3. Refrigerant leaks

When there are leaks in the refrigerant lines, you will see symptoms like warm air blowing, hissing noises, and decreased cooling capacity.

4. Evaporator coil problems

If the evaporator coll is dirty or damaged it will affect the cooling efficiency. The main symptoms are water leaking and ice buildup in the indoor unit.

5. Dirty or blocked air vents

Airflow is restricted when the air vents are blocked. Decreased airflow and increased energy bills are the signals for dirty vents.

6. Electrical issues

Blown fuses and faulty wires can be the reason for your AC unit not working. The signs are AC not turning on and strange odors from the unit.

7. Improper sizing of the AC

If the AC size and capacity are too small you will find that it is not cooling adequately on hot days. The cooling cycle will also be longer.

8. Lack of maintenance

This can cause issues like clogged and dirty coils and vents and worn-out parts. The major signs are frequent breakdowns and failure to cool efficiently.

9. Clogged or restricted air ducts

Clogged air ducts are one of the common reasons for your air conditioner not cooling. This will cause reduced airflow from vents and uneven cooling.

Benefits of annual AC maintenance

If your air conditioner stops working suddenly on a hot summer day, it can be highly irritating. An annual AC maintenance can put an end to this problem. It will help to identify minor issues before they become major and your AC unit stops working. The air quality in your home will be better and you will feel more comfortable. Your air conditioner will be more energy-efficient saving your hard-earned money and the environment.

Air conditioner not cooling can be a big issue on hot and humid days. To prevent your AC from breaking down unexpectedly, you should maintain it regularly. Regular maintenance done by professionals is more effective and reliable. Schedule maintenance with a leading AC services and maintenance company like Alcazar popular for their all-inclusive services such as air conditioner installation, maintenance, repair, and replacement.

Frequently Asked Questions (FAQs) about Air Conditioning

How do you fix an aircon that is not cold?

Check the filters. Clean them or replace them if necessary. Other issues include problems with the thermostat, evaporator coils, and compressor. A professional will identify and fix the issue efficiently.

Should I turn off the AC if it’s not cooling?

Yes, it is better to turn it off. Stopping the system will prevent further damage until an HVAC professional identifies the problem and fixes it.

Why is my split air conditioner not cooling?

The condenser coil may be clogged or may be frozen. The air filters may be dirty and clogged. The compressor and thermostat may not be working. These are the common causes.

How do I know if my AC is cooling properly?

You should check the power connection, air filters, batteries, circuit breaker, and thermostat. Regular maintenance will help you detect issues early and fix them immediately.