When your air conditioner is meant to keep your space feeling cool and comfortable, it can become troublesome when your unit suddenly stops blowing cold air. This problem can be caused by a few different factors, but the good news is that you might be able to fix the issue without having to call a professional HVAC technician. Here are some reasons why your air conditioner may not be cold, as well as some solutions to fix it!
Why is My Aircon Not Blowing Cold Air? X Reasons
Reason #1 Thermostat Settings
If your air conditioner isn’t cooling, then the first thing you need to check is your unit’s thermostat settings. There’s a chance that your thermostat isn’t set for optimal cooling, so make sure that your air conditioner is set to cool mode and that the temperature is low enough for a comfortable experience.
Reason #2 Dirty Air Filter
Another common reason why your air conditioner isn’t blowing cold air is because of a dirty air filter. The air filter of your air conditioner is responsible for removing all the dirt and impurities and preventing them from spreading. However, these filters can become blocked with dust and debris, especially when they aren’t being cleaned as often as they should be.
Make sure that you check on your air conditioner’s air filter regularly to avoid obstructing the air circulation inside your unit, which can cause a wide range of issues. Here’s how you can clean your air filter:
- Power down your air conditioner and remove the panel. Locate and remove the air filter from the unit.
- Use your vacuum cleaner to remove any loose particles from the filter. Alternatively, you can use a soft brush.
- Soak the air filter in some soapy water and leave it for around 10 to 15 minutes.
- Once the remaining debris is softened, use a soft brush or a sponge to gently scrub away the remaining dirt.
- Let the air filter dry completely before putting it back inside your unit.
Reason #3 Refrigerant Issues
Refrigerant plays a very important role in the overall cooling process of your air conditioner. In case you didn’t know, refrigerant circulates around your unit to remove the heat from the air. Any issue with your air conditioner’s refrigerant levels, whether it’s simply low refrigerant or a refrigerant leak, can compromise the cooling ability of your unit.
Unfortunately, the only way to address this issue is by having your unit professionally checked by an HVAC technician.
Reason #4: Dirty Coils
Just like your air conditioner’s air filter, its coils can also accumulate a significant amount of dirt over time. Not only will this prevent your air conditioner from cooling your space efficiently, but it can also cause other problems, such as ice formation inside your unit. The best thing you can do is to check on your unit’s coils regularly and clean them when needed.
Here’s how you can clean your air conditioner’s coils:
- Shut down your air conditioner and remove the panel to locate the coils. Feel free to consult your unit’s user manual.
- Remove all the loose dirt and dust with a soft brush. Make sure to be careful to not damage the surrounding components.
- Spray the coils with a commercial coil cleaner or a soapy water solution. Let it sit for 5 to 10 minutes.
- If needed, wipe away any stubborn grime with a damp cloth.
- Rinse the coils with water before letting them dry.
Reason #5: Clogged Drain Line
Your air conditioner produces a significant amount of condensation during the cooling process, and all this moisture is expelled from the unit through the drain line. However, if the drain line becomes clogged with dust, dirt, and debris, then your unit won’t be able to get rid of the accumulated water, resulting in this moisture reentering your unit and causing a wide range of issues, such as compromised cooling performance.
Here’s how you can keep your drain line clean and clear:
- After turning off your air conditioner, locate the drain line of your unit.
- Use a flexible brush to remove any visible clog and buildup inside your drain line.
- Combine equal parts of white vinegar and water and use this solution to flush your drain line. Leave it to sit for 30 minutes.
- Flush the drain line with water to wash away the white vinegar solution, as well as any dislodged debris.
- Once you’ve ensured that the line is completely cleaned, let it dry before turning your unit back on.
Cool It!
Don't be immediately alarmed when your AC system stops blowing cold air into the room. Unplug the unit, and check for any possible causes and easy fixes first, before deciding to call a technician. However, if the issue cannot be remedied at home, we at Luce are more than glad to give your unit a thorough checkup!
Send us a message today, and we can discuss the best time to schedule you for an appointment!
