Oh no, your AC isn’t blowing cold air! Understanding why this happens can help you avoid future meltdowns – plus, it’s pretty interesting.
Let’s explore the science of air conditioning, and some surprising reasons your AC might be giving you the cold shoulder.
How air conditioning actually works
Before we get into the problems, let’s break down how air conditioning works. It’s not just about blowing cold air into your home – it’s a complex process of heat transfer. Your AC unit uses a refrigerant to absorb heat from inside your home and release it outside. This cycle repeats, gradually lowering the indoor temperature.
The refrigerant goes through a series of state changes, from gas to liquid and back again, as it moves through the system. It’s like a molecular magic trick that turns your sweltering living room into a cool oasis.
Common culprits of warm air
Now that we understand the basics, let’s look at some reasons your AC might be blowing warm air:
Refrigerant leaks
Did you know that your AC doesn’t actually create cold air? It removes heat from the air using refrigerant. If there’s a leak, your system can’t effectively remove heat, leading to warm air blowing from your vents.
Frozen evaporator coil
Ironically, your AC can get too cold. If the evaporator coil freezes, it can’t absorb heat properly. This can happen due to restricted airflow or low refrigerant levels. Who knew your AC could give itself the cold shoulder?
Dirty condenser coils
Your outdoor unit houses the condenser coils, which release the heat absorbed from inside your home. If these coils get dirty or clogged, they can’t release heat effectively, making your entire system less efficient.
Thermostat troubles
Sometimes the problem isn’t with the AC itself, but with the thermostat. A malfunctioning thermostat might not be sending the right signals to your AC, causing it to blow warm air or not turn on at all.
The surprising impact of your air filter
Here’s something that might make you say “I didn’t know that!” – a dirty air filter can cause your AC to blow warm air. When the filter is clogged, it restricts airflow over the evaporator coil. This can cause the coil to freeze, leading to warm air blowing from your vents. It’s a simple fix that can make a big difference!
When to call in the pros
While some AC issues can be solved with a bit of DIY spirit, others require professional attention. If you’ve checked the obvious culprits and your AC is still blowing warm air, it’s time to call in a certified technician.
Don’t let a malfunctioning AC turn your home into a sauna. Ballard is here for all your air conditioning needs. Contact Ballard online for the best service in San Bernardino, or call us at 909-297-1914.
