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Troubleshooting Guide for Air Conditioning

Air conditioners are essential to keeping your home cool and comfortable, especially in the summer. When your AC breaks down, waiting for a professional to come to your home and fix it can take days or weeks, depending on scheduling and availability. Often, simply...

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5 Quick Ideas to Renovate Your Home

5 Quick Ideas to Renovate Your Home

Refresh your space in just an afternoon, or as little as 5 minutes! These quick ideas to renovate your home include decorative vent covers, updated hardware, and more.

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Troubleshooting Guide for Air Conditioning

Air conditioners are essential to keeping your home cool and comfortable, especially in the summer. When your AC breaks down, waiting for a professional to come to your home and fix it can take days or weeks, depending on scheduling and availability. Often, simply popping open a window or running a fan isn’t enough on a particularly hot summer day. The good news is that there a surprising number of instances in which you can diagnose and repair a broken AC on your own. This article reviews troubleshooting tips and highlights a few common issues and solutions so you can get your AC back up and running.


  • Make sure the thermostat is set properly. Sometimes fixing your air conditioner is as simple as learning to set the thermostat properly. If set incorrectly, your air conditioner may not work the way you want it to. You might have your thermostat set to heat instead of air conditioning. If this happens, you’ll likely have hot air coming out of your air conditioning vents. It’s easy to forget to make the switch when the seasons change. Double-check this before you assume that your AC unit is broken.
  • Change the thermostat batteries. Have you checked the batteries in your thermostat lately? If you haven’t changed the batteries in a long time, you might be dealing with a dead battery. Without functioning batteries, the thermostat cannot communicate with the air conditioning unit.
  • Replace the air filter. If the filter gets too dirty, the air cannot flow properly. As a result, your air conditioner won’t work as well or maybe at all. Modern air conditioners in particular are extremely sensitive to dirty air filters. If you can’t remember the last time you changed the filters, it’s time to change them.
  • Check your circuit breaker. The next thing you can try troubleshooting is checking your circuit breaker. If the circuit breaker connected to the air conditioner has been tripped, you’ll need to reset it.
  • Check the air vents. Make sure that all of your air ducts and vents are clear. If they get clogged by dust or dirt, the air can’t flow properly; simply cleaning your air vents could be the answer to your problems. There may also be issues within the air ducts that you can’t see. Things like mold or vermin infestation can prevent your AC from working properly.


While there are plenty of things you can do on your own troubleshooting and combatting common problems with your air conditioner, there are several instances where you need to contact a professional.

  • Strange Noises Coming From Your AC: Is your air conditioner making loud banging, clanging, or other unfamiliar noises? If these sounds are coming from your air conditioner or vents, you likely have a serious problem. This is not something you can fix on your own, but an HVAC professional will understand the issue and find a solution.
  • Issues with the Outdoor Unit: If your outdoor air conditioner unit is the problem, you should not try to fix this yourself. While changing your air filters and replacing batteries are perfectly fine for you to do on your own, fixing more complicated issues may void your warranty. For true maintenance issues, it’s best to contact a professional.
  • Improperly Installed AC: If you’ve noticed that your air conditioner was not installed properly, you should call a professional to reinstall or fix it.

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If you would like to discuss Stellar Air Decorative Vent and Grille Covers or want to have a custom-designed Grille or Ventilator cover made for your home or office, please do not hesitate to call us at 842-795-6680 or you can email us at

Actually, Closing Air Vents Does Not Save You Money

Just like turning a light off in an unused room, closing an air vent is one of the ways many people try to save money and energy. It just seems like common sense. After all, why should an empty room be air conditioned?

Well, the truth is, that empty room needs to get air flow because closing the vents is doing more harm than good. Keep reading to see how we break down this common misconception and share why letting your air vent flow freely is better for your home.

Gemstone - Vent Cover - Ceiling Close Up, Decorative Air Vent, Custom Air Vent Cover, Stellar Air, Charleston, SC

Your air vents don’t talk to your HVAC system. No matter how you adjust the cover to increase or decrease the air flow into a room, you’re getting the same amount of air and the same amount of pressure. When your air vents are closed, that air is still pushing to get through and into that room, but it doesn’t have anywhere to go, so instead it builds up pressure and is pushed elsewhere.

Depending on the blower system you use, you’ll either end up with a higher electricity bill or a high-dollar repair bill:

Permanent split capacity (PSC) blowers can’t overcome extra pressure from closed vents. It will keep spinning and trying to work, but as more pressure builds, less air flow is circulated through your home. Low airflow means your air conditioner’s evaporator coil is going to get too cold and it may even freeze over. If this happens too much, you risk your outdoor unit’s compressor giving up completely… and having to buy a new one to replace it.

Electronically commutated motor (ESC) blowers, however, adjust speed based on different conditions. So unlike the PSC, it can overcome extra pressure from closed vents. While you have a lower risk of damaging your compressor and evaporator coils, your ESC is going to work harder to adjust the pressure –– meaning it’s going to ramp up on energy to get its job done. Keep in mind that leaky air ducts are quite common in homes. As pressure increases, air will push through the leaks, meaning less air is working harder to go where it doesn’t belong.

Both systems run the added risk of increasing condensation, which in turn, increases the likeliness of mold and mildew building up in your ducts. No matter your blower system, closing your air vents causes problems that hurt your wallet more than help your home.

So what should you do instead?

Rather than trying to redirect air, one solution is to program your thermostat to turn on during certain times of day. Rather than running constantly and running up bills, you’ll use your AC system more efficiently and keep your airflow going safely.

Balance is key for lower energy bills, a healthier HVAC system and more efficient airflow. Closing vents contributes to many issues with your HVAC system –– but vents themselves can also be an issue with your airflow. Older vents are dusty, ugly, and may not be tested to ensure maximum airflow. If your vents aren’t allowing all of the air to get through, even if they’re open, you’re likely to run into similar issues as keeping them closed.

Make a simple switch by using Stellar Air’s vent covers that are lab-tested for maximum airflow and handcrafted here in the USA. Our grilles and ventilator covers are quality tested to improve your airflow and look stylish in your space. We measure velocity and flow to ensure air from your ducts is evenly distributed through the vents no matter the intricacies of our patterned designs. All of our covers offer a higher, and better, FPM than traditional options. Made with quality natural wood that’s resistant to mold and mildew, Stellar vent covers are functional and beautiful. Visit our collection pages to grab the product details and data on each of covers.

Black Friday Sale!

Make your home — or someone else’s — stand out this holiday season!

For Black Friday, Stellar Air is offering TWO free ventilator covers (any size or design) with the purchase of a decorative grille cover! That’s over $75 in savings!

To redeem this offer, add your desired grille cover and your two ventilator covers to your cart and use the promo code BLACKFRIDAY18 to receive your discount!

Happy shopping!

Introducing the New Gemstone Style

Introducing our new design “Gemstone”. As the name describes it, this beautiful design shows the different shapes that a precious stone can have. Utilizing different shapes, symmetrically laid out all together, they become a group of jewels. How to start a new design? It comes from inspiration! Everything around us has patterns, shapes, colors, and textures. We start by taking a picture of something that catches our eye. We upload it into our design program to create curved drawings. We manually add more designs to fill in the shape and give it form. Then we create a 3D rendering to see how it will appear once it is manufactured; and we are ready to make one. The design can take you in different directions once you start to play with it… From one idea, a few more are born! Explore, get inspired, and create!

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