To fix an AC not blowing cool air, ensure the thermostat is set to "cool" mode and the temperature is set lower than the current room temperature. Inspect the air filter as a dirty filter can restrict airflow. Ensure the condenser coils are clean and free of debris. Make sure vents are open and unobstructed.
There are a number of reasons why your air conditioner might be running but not cooling. It could be an issue with the thermostat, the compressor, or the evaporator coils. Or, it could simply be clogged with dust and debris, which is preventing it from working properly.
Prevent heat gain in the house, which raises the workload for your AC unit. Cover windows during daylight hours, turn off unneeded lighting and limit the use of heat and moisture-producing activities such as cooking or showering until after the sun goes down. Keep the air conditioner's drain line clear of clogs.
Your AC might not cool properly due to thermostat issues, an undersized unit, or extremely high outdoor temps—so check those first. Keep an eye on airflow—replace clogged filters every 3 months, and make sure vents and ducts aren't blocked for efficient cooling.
Press the Mode button and select Cool. Step 2. After selecting Cool mode, you can also select the desired function, temperature, and fan speed as well. To cool more quickly, select a lower temperature and a faster fan speed.
There are many reasons your AC might not be cooling your home properly. The solution could be as easy as flipping a switch on your thermostat, cleaning a dirty air filter, or clearing debris away from your outdoor unit. There are also more complex problems that may need the help of a professional.
Most people know that turning up the thermostat on their air conditioner to a higher temperature will result in cooler air blowing from the vents. However, there is a point at which increasing the temperature any further does not make the air cooler – it just uses more energy and costs more money.
Cool mode
This is the most common and usually the default setting when you first turn on the AC. This mode sends cool air throughout your room and is great for cooling down an area after a long, hot day.
Turning off your AC when it's not cooling is more than a precaution; it's a necessary first step in troubleshooting and protecting your system from further damage. By understanding when to perform simple checks and when to call in the experts, you ensure your air conditioner remains a reliable refuge from the heat.
Proper airflow is crucial for an AC system to cool your home efficiently. Several factors can compromise airflow, including blocked or obstructed vents, closed or incorrectly adjusted dampers, and dirty or obstructed evaporator coils. These issues restrict the air's flow, reducing the system's cooling capacity.
Reset the AC Using the Isolation Switch
The isolation switch looks like an ordinary light switch with a knob. Once you locate it, turn the knob to the off position and leave it for at least 30 minutes up to an hour. This will allow the electrically operated components in the AC to reset.
Here's a question we hear often from those who brave the humid Atlanta weather: “Should I run my air conditioner with a ceiling fan?” Answer: You can— and should— run your A/C and ceiling fan together. Doing so can help lower your cooling costs each month, but only if you're using them right.
Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously. There is better dehumidification in your home during the summer months. When your fan is set to AUTO, moisture from cold cooling coils can drip and be drained outside.
Most people work better and are more productive when with a temperature setting in the 72–74-degree range. This setting is low enough to keep the house cool and dry and keep you and the kids awake during the afternoon hours.
Whether you've confirmed for certain that you have frozen evaporator coils, or you just suspect it, you need to turn off your A/C. Then, your coils should be able to defrost, taking up to 24 hours to thaw out. You can also safely dry out the coils with a hair dryer.
The short answer: You can get away with running your AC without a filter for a short period of time. However, doing so for longer than 6-8 hours can hurt your system and decrease your home's indoor air quality.
Cooling mode is the most frequently used setting on air conditioners, represented by a snowflake symbol. It works by removing heat from the indoor air and expelling it outside, thereby lowering the room temperature.
If your AC takes too long to cool a room, it could be due to several factors. One common reason is a dirty or clogged air filter, which restricts airflow and reduces the system's efficiency. Low refrigerant levels can also cause the AC to struggle in reaching the desired temperature, as it affects the cooling process.