As winter fades and spring rolls in, your HVAC system has been working hard to keep your home warm. But now that temperatures are rising, you might start noticing little problems popping up. Before you switch from heating to cooling, it’s a good idea to make sure everything is in top shape. Nobody wants their air conditioning to break down when the first heatwave hits, right?
At EMI Air Systems, we see these issues pop up all the time in homes across Shelburne, Mulmur, Simcoe County, and Dufferin County. So, let’s talk about some of the most common HVAC problems people run into this time of year and how to avoid them.
1. Clogged or Dirty Air Filters
Imagine trying to breathe through a dust-covered scarf—it’s tough, right? That’s what happens to your HVAC system when the air filter gets clogged. After running all winter, the filter gets packed with dust, pet hair, and other gunk, making your system work way harder than it should.
How to Avoid It:
Swap out your air filter every 1-3 months, especially if you have pets or allergies.
Use high-quality filters to keep the air clean and your system running smoothly.
Get a quick HVAC check-up if you’re unsure about your filter’s condition.
2. Furnace Wear and Tear
Your furnace has been your best friend all winter, but after months of hard work, some parts might be worn down. You might hear weird noises like banging or whistling—that’s usually a sign something isn’t right. If ignored, it could lead to a total breakdown.
How to Avoid It:
Schedule a post-winter tune-up with an HVAC technician to catch small issues before they become big problems.
Keep an ear out for odd sounds and call in a pro if something doesn’t seem right.
Make sure your thermostat is working properly so your furnace isn’t running longer than necessary.
3. Thermostat Acting Up
Ever feel like your home just won’t hit the right temperature? It could be your thermostat acting up. If the batteries are low or the sensor is off, it won’t communicate properly with your HVAC system.
How to Avoid It:
Change the batteries every six months so you don’t get caught off guard.
Give it a quick dusting so dirt doesn’t mess with the sensors.
Consider upgrading to a smart thermostat for better control over your home’s temperature.
4. Leaky or Blocked Air Ducts
If your home has rooms that feel way hotter or colder than the rest, your air ducts might be the problem. Leaks or blockages in the ductwork can keep warm or cool air from reaching certain areas of your home.
How to Avoid It:
Peek at any exposed ductwork and look for gaps or holes.
Schedule a duct cleaning if it’s been a while—dust and debris love to build up in there.
Make sure no furniture is blocking vents so air can flow freely.
5. Low Refrigerant in Your Air Conditioning System
Spring means it’s time to switch on the AC. But if your system isn’t cooling properly, it might be low on refrigerant due to a leak. This can make your AC work overtime while barely cooling your home.
How to Avoid It:
If you notice weak airflow or warm air coming from the vents, call a technician to check refrigerant levels.
Watch for ice forming on the AC unit or hear a hissing sound—both can signal a leak.
Get your AC inspected by an HVAC technician before summer kicks in.
6. Frozen or Dirty Coils
Coils help your AC cool the air, but if they’re dirty or frozen, your system won’t work properly. This usually happens when airflow is blocked or there’s a refrigerant problem.
How to Avoid It:
Keep the area around your AC unit clear of debris and dust.
Check your air filter regularly since a clogged filter can lead to frozen coils.
If you spot ice on the coils, turn off the AC and let it thaw, then call a pro for an inspection.
7. Clogged Drain Lines
Your HVAC system produces moisture, which should drain away properly. If the drain line gets clogged, it can lead to water damage, mold growth, or even an AC system shutdown.
How to Avoid It:
Check for standing water near your HVAC unit—it could mean a clog.
Pour a cup of vinegar down the drain line every few months to keep it clear.
Have an HVAC specialist inspect the system if you notice water pooling.
8. Short Cycling (Turning On and Off Too Often)
Short cycling happens when your HVAC system keeps turning on and off without running a full cycle. This wastes energy and can wear out your system faster.
How to Avoid It:
Make sure your air filter is clean and airflow isn’t blocked.
Check your thermostat placement—it shouldn’t be in direct sunlight or near vents.
If short cycling continues, have a technician take a look at the system.
9. Unusual Smells from the HVAC System
If your HVAC system is giving off strange odors, it could be a sign of mold, burnt-out components, or even a gas leak.
How to Avoid It:
If you smell a musty odor, clean or replace the air filter and check for mold.
A burning smell could mean an electrical issue—turn off your system and call a professional.
If you suspect a gas leak, get out of the house and call emergency services immediately.
10. Loud or Strange Noises
Weird noises coming from your HVAC system aren’t just annoying—they’re a sign that something’s off. Banging, rattling, or squealing sounds could mean anything from a loose part to a failing motor.
How to Avoid It:
If you hear an odd sound, don’t ignore it—problems rarely fix themselves.
Tighten any loose screws or panels if you can safely do so.
Have a technician from EMI Air Systems take a look before the problem gets worse.
Wrapping It Up
Taking a little time now to check on your HVAC system can save you from bigger headaches later. Whether you need furnace repair or a quick AC tune-up, EMI Air Systems has your back. A simple maintenance check can keep your system running smoothly and help you avoid those costly emergency calls when summer hits. If you’re in Shelburne, Mulmur, Simcoe County, or Dufferin County, we’re just a call away!
Reach us at:
website - emiairsystems.ca
phone - 437-343-0275
email - emiairsystems@gmail.com
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