When temperatures skyrocket outside, your air conditioner can pump cool, refreshing air into your home. But sometimes, your HVAC can fail, blasting in warm air or not providing a current. If your home's A/C starts making strange noises, can't cool the air anymore, or won't even turn on, don't wait. Call your local team of HVAC experts at 1-800-Plumber +Air to resolve the issue and make your air conditioning work again. Start by taking a closer look at some of the most common reasons why an A/C is not blowing cold air and what you can do about it.
Reasons Why Your A/C Is Not Cooling
When your air conditioner is not blowing cold air, many different reasons could be making it malfunction. Glance through these common problems to see if any sound familiar, or contact your local A/C servicing company to tell them your HVAC is not blowing cold air:
Low Refrigerant (Typically a Refrigerant Leak)
Do you usually hear a whistling sound when your HVAC cycles on? That high-pitched sound usually indicates a leak in your refrigerant system. Even slow leaks will eventually reduce your A/C's cooling power over time until your A/C is not blowing cold air at all. Talk to a local technician who can refill the refrigerant based on your unit.
Clogged or Dirty Air Filters
One of the most important DIY maintenance steps of owning an HVAC is changing out the filters. Over time, the HVAC will pick up dirt, dust, pet hair, and other debris in the filters, and when the build-up is too thick, the unit won't work right, and you'll realize the A/C is not getting cold. Dirty HVAC filters also cause the unit's evaporative coils to freeze. Counterintuitively, this will also mean the A/C is not blowing cold air. Change your filters at least once a quarter or monthly, depending on your unit.
Thermostat Problems
Sometimes, it's not the unit's fault that the A/C is not blowing cold air—it's the thermostat's. Double-check the thermostat panel to ensure the A/C is on (rather than just ventilation or heat), and ensure the temperature gauge is accurate. It can turn off or malfunction after a power outage. A trained technician can troubleshoot your thermostat to ensure the temperature gauge and programming work correctly.
Bad Compressor or Heat Pump
If you hear clunking, screeching, or frequent cycling, that indicates mechanical issues inside the air conditioner. Call an HVAC technician to safely get inside the unit and determine why the A/C is not blowing cold air. The sooner you do this, the better—small problems can become much bigger repair jobs over time.
Clogged HVAC Drain
Just like air filters get dirty, the drain line that directs water away from your machine's coils will get dirty, too. Mildew and gunk in the water will build up and clog the pipe. This is relatively simple to fix with a bit of vinegar, but it's important to keep an eye on it so you don't have to worry about water leaks or your HVAC not blowing cold air because of a small clog.
Does Your A/C Need Repair? Contact the Experts at 1-800-Plumber +Air
Some of these problems are easy to fix with a bit of DIY maintenance, but most of them require services from professional HVAC technicians. Call 1-800-Plumber +Air for fast AC repairs and seasonal tune-ups to enjoy cool air all summer.
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