A split air conditioner is essential in keeping your home or business comfortable, particularly during the hot summer months. However, if you start to notice that your unit isn’t performing as it used to, you may find yourself asking, “how to check if split ac is cooling properly?” This guide will walk you through simple checks to determine if your air conditioning unit is operating efficiently. We’ll also discuss when it’s best to call a professional for thorough diagnostics and servicing.
Check the Thermostat Settings
The first step to ensuring your split AC is cooling properly is to double check the thermostat settings. It may seem basic, but incorrect thermostat settings are a common issue.
- Set to Cool Mode: Make sure the thermostat is set to “cool mode.” If it’s on “heat” or “fan only,” your unit won’t cool the room.
- Fan Setting: Set the fan to “auto” rather than “on.” In “auto” mode, the fan only operates during the cooling cycle, allowing for efficient cooling. In “on” mode, the fan runs continuously, which can lead to warm air blowing from the vents when the compressor is off.
- Temperature Setting: Set the thermostat to a comfortable temperature, ideally a few degrees below the current room temperature, and monitor if the room starts cooling within 10-15 minutes.
Measure the Temperature of the Air Coming from the Vents
To determine if your air conditioner is cooling effectively, you can perform a simple temperature test using a thermometer.
- Take a Reading: Measure the temperature of the air coming from the supply air vent. Then, compare it with the room temperature.
- Temperature Difference: Ideally, the air from your split AC should be 8 to 12 degrees cooler than the room’s current temperature. If the difference is minimal, it could indicate an issue with the cooling system, such as low refrigerant levels or a blocked airflow.
This quick test gives you a sense of whether the unit is cooling properly, or if it might need further attention.
Inspect the Air Filters
Dirty air filters are one of the most common causes of cooling issues in split air conditioners. Air filters play a crucial role in maintaining airflow and air quality.
- Check for Dirt and Debris: A clogged or dirty air filter restricts airflow, causing the system to work harder and reducing the cool air output.
- Clean or Replace the Filter: For optimum performance, clean or replace your air filter regularly. If you have pets or live in a dusty area, consider cleaning or replacing the air filter more frequently. This will help improve both the air quality and the efficiency of your air conditioning unit.
Examine the Outdoor Unit
The outdoor unit of your split AC plays an essential role in removing heat from the indoor air. Ensuring it’s in good condition is crucial for efficient cooling.
- Clear Obstructions: Dirt, debris, and even plants can obstruct the outdoor unit, reducing its ability to release heat effectively. Make sure there’s a clear space around the outdoor unit for proper airflow.
- Inspect the Coils: Dirty condenser coils can also reduce the cooling performance of the AC unit. If the coils are covered in dust or grime, the outdoor unit will struggle to remove heat, leading to warm air blowing from the indoor unit.
Regularly cleaning and maintaining the outdoor unit can prevent cooling issues and help keep your system working efficiently.
Look for Signs of Refrigerant Issues
Refrigerant is crucial for the cooling process in your air conditioning system, as it helps absorb and remove heat. Low refrigerant levels or refrigerant leaks are common issues that affect cooling performance.
- Watch for Low Refrigerant Symptoms: If your unit isn’t cooling properly and you notice hissing sounds or ice on the copper pipes, it may be a sign of a refrigerant leak or low refrigerant levels.
- Professional Help Needed: Handling refrigerant requires a licensed HVAC technician, as refrigerant leaks can cause damage to the environment and affect the system’s efficiency. If you suspect a refrigerant problem, reach out to a professional rather than attempting a DIY fix.
Check for Other Common Issues
There are other factors that could contribute to poor cooling performance in your split AC. Here are a few additional checks:
- Dirty Evaporator Coils: These coils are responsible for absorbing heat from the indoor air. When covered in dirt, they can’t transfer heat efficiently, which may lead to warm air blowing out.
- Fan Motor Malfunction: The fan motor is essential for pushing cool air throughout your home. If it’s not working properly, you may experience reduced airflow and uneven cooling.
- Unusual Sounds or Smells: Strange noises, like rattling or buzzing, could indicate loose or failing components. Musty or burning smells could be signs of mould growth or electrical issues, respectively. Both require immediate attention from an HVAC technician.
Ensure Your Split AC Stays Cool All Summer Long
Checking if your split air conditioner is cooling properly is essential to maintain comfort and efficiency in your home or business. While these DIY checks can help identify common issues, some problems require professional diagnostics. A licensed HVAC technician can ensure your air conditioning unit is running smoothly, preventing issues like refrigerant leaks or dirty evaporator coils from causing further damage.
If you’ve performed these checks and your split AC still isn’t cooling effectively, it may be time for a professional inspection. Our team is here to help keep your split AC working at its best, ensuring your comfort throughout the year. Contact us today to schedule a service or to discuss any concerns about your cooling system.
