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Air Conditioner Running But Not Cooling: 5 Causes And Fixes

Unfortunately, air conditioner troubles are all too common. Between factory malfunctions or improperly maintained systems, keeping your business cool is a full-time job. With every inefficiency, your energy bill goes up.

And, on a hot summer day, it’s critical to keep your cool. After all, no one wants to sit and sweat through their lunch–or their meeting.

So today, we’re going to explore common AC running but not cooling issues, their causes, and what you have to do to prevent such issues.

1. Dirty or Clogged Air Filters

The filter is designed to capture dust, dirt, and other airborne particles. When the filter becomes clogged, the airflow to the evaporator coil is restricted, reducing the cooling and airflow in the cabin.

The fix for a clogged or dirty air filter includes replacing the old filter with a new one or, if it’s reusable, cleaning it off with water and a small amount of detergent. Additionally, it should be replaced or cleaned every quarter for optimal performance.

2. Refrigerant Leak

Refrigerant is the lifeblood of the air conditioner which helps cool and dehumidify air. If there is any sign of refrigerant leaking out, it’s important to identify the problem and make repairs immediately. The leading sign of a refrigerant leak is the AC not cooling the house, usually accompanied by weaker airflow and warmer air blowing from the air registers.

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The best solution for a refrigerant leak is to call a professional HVAC technician who can identify, diagnose, and repair the issue. In addition, the tech can safely and properly recharge the AC unit with new refrigerant and bring it back to proper working order.

3. Thermostat Issues

A malfunctioning thermostat can cause the AC to run continuously without cooling. Poor wiring, incorrect settings, power outages, and faulty components are some of the causes of thermostat problems.

To fix this issue, start by making sure all the wiring is properly connected. Then, make sure the thermostat is in a locale where it can measure the room temperature accurately. Verify that the thermostat is set to ‘cool’ mode, and check the power source to ensure the thermostat is receiving power.

4. Dirty or Blocked Condenser Coils

This occurs when dust, dirt, and debris build up on the evaporator and condenser coils. This buildup keeps the refrigerant from absorbing and releasing heat properly, resulting in an inefficient cooling system. The fix is to clear out any blockage and debris on the coils with a vacuum cleaner, brush, or CO2 blower and then rinse the coils with a garden hose.

5. Faulty Compressor or Capacitor

A faulty compressor or capacitor in the AC unit can lead to a system being unable to generate cold air. The compressor or capacitor has the important job of creating and maintaining the cooling effect.

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To fix this issue, you should replace the faulty compressor or capacitor on the AC unit. Have a professional contractor check and repair the compressor or capacitor to ensure the job is done properly. That way, these professionals can also go through the commercial HVAC maintenance checklist to help you address other AC problems that may come with the main concern.

Learn to Identify Some AC Running But Not Cooling Issues

AC running but not cooling is a major concern. To fix this issue, check the power supply, clean the condenser coils, replace the filter, and inspect the pipes and thermostat. If the problem persists, call a professional for additional help.

Source: engineeringcivil

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