Living in San Diego comes with its fair share of sunshine and warm weather—one of the many reasons we love it here. But when your air conditioner starts acting up during one of those 85-degree afternoons, it can go from paradise to panic mode real quick. At Carini Home Services, we’ve seen it all when it comes to AC repair in San Diego, and we’re here to break down the most common issues, what they mean, and how to fix them.
Why is my AC running but not cooling?
One of the most common complaints we hear from San Diego homeowners is, “My AC is running, but it’s not blowing cold air.” This can be caused by a variety of things:
- Dirty air filters – These restrict airflow and prevent the system from cooling effectively.
- Low refrigerant levels – If your system is low on refrigerant, it can’t absorb heat properly.
- Frozen evaporator coils – This is often due to restricted airflow or low refrigerant.
- Thermostat issues – Sometimes it’s as simple as a faulty thermostat giving bad directions to your AC.
If you’re noticing this issue, it’s time to call a licensed HVAC technician. Continuing to run your AC without resolving the issue could cause more damage and lead to higher repair costs.
What is the most expensive part to replace on an air conditioner?
When it comes to AC repairs, the compressor is typically the most expensive component to replace. It’s essentially the heart of your system, responsible for circulating refrigerant between the indoor and outdoor units. Replacing a compressor can run anywhere from $1,200 to $2,500 depending on the model and system size.
At Carini, we always provide honest air conditioning diagnostics and will help you weigh whether a major repair like this makes sense—or if it’s time to consider replacing your system altogether.
What is the most common AC repair in San Diego?
Here in San Diego, refrigerant leaks and electrical issues tend to be the most common AC repairs. Our coastal climate and temperature swings can cause wear and tear on system components faster than you might expect.
Other frequent repairs include:
- Capacitor or contactor replacements
- Thermostat malfunctions
- Blower motor repairs or replacements
- Drain line clogs, especially during humid stretches
We often see these issues peak in the spring and summer when AC systems are working the hardest.
Is my AC worth repairing?
Great question—and the answer depends on a few key factors:
- Age of the system – If your AC is over 10-15 years old, repairs may be just a temporary fix.
- Frequency of breakdowns – Multiple repairs in a short time can mean it’s time for a replacement.
- Cost of the repair – A good rule of thumb: If the repair costs more than 50% of the price of a new unit, replacement may be the smarter investment.
In San Diego, where energy efficiency and indoor comfort are especially important, upgrading to a newer system can also save you money on monthly utility bills. Plus, with rebate programs often available, replacement is more affordable than many think.
Local Tip: Regular Maintenance Prevents Big Repairs
We can’t stress this enough: Annual AC maintenance is one of the best ways to prevent costly repairs. In San Diego’s climate, your system needs to be prepped for long stretches of use. A simple tune-up can catch issues before they become emergencies—and help your system run more efficiently.
At Carini, we offer comprehensive maintenance plans to help you stay cool year-round without unexpected surprises.
Need AC Repair in San Diego? Call the Local Pros
Whether your AC isn’t blowing cold air, making odd noises, or not turning on, Carini Home Services is here. We’ve been serving San Diego homeowners for over 20 years with expert repairs, honest recommendations, and friendly service.
📞 Call us today or Send us a Message for fast, reliable AC repair in San Diego.
P.S. Don’t wait for a heatwave to get your system checked—schedule a tune-up today and stay ahead of the summer rush!