AC Repair and Maintenance

Schedule Your AC Service Today

Let’s face it, air conditioning is a necessity even in San Diego. While we enjoy near perfect weather year round, we do have a few months with extreme heat waves, and every year it seems to get hotter for longer. When the temperature is breaching triple digits, AC repair is something we will all have to have performed.

If you are searching for the right home AC repair service, look no further than John Stevenson Plumbing, Heating & Air. We have some of the best air conditioning specialists ready to help you achieve absolute home comfort in even the hottest summer months.

Our Promise To You Is To Perform The Correct AC Repair, Maintenance and Installation Services At An Honest Price

One of our commitments to our customers is ensuring that all of our AC services are performed to solve the problem long term. We do not believe in performing unnecessary repairs that may or may not fix the larger problem.  

When our customers call us, we will perform a thorough evaluation of the entire system. Often, we find that the system only needs a deep cleaning and tuning service. We offer complete AC maintenance to keep your unit working at peak condition. We will also take this time to inspect the thermostat and educate homeowners on how to get the most out of efficient thermostat scheduling.

During Our Tune Up, Some of the areas we will check include:


Clean or replace filters


Inspect the condensate drain


Clean evaporator and condensing coils


Check safety controls


Check refrigerant level, and inspect for leaks


Check amperage and electrical connections


Adjust blower components


Ensure system starts, runs, and shuts off as it should


Test the thermostat

With annual service, homeowners can keep their system running at the proper performance and avoid costly repairs. Ideally, homeowners should schedule seasonal maintenance prior to the heatwave. Spring is the best time to get on an annual tuneup schedule — consider it spring cleaning for your AC! This way, when you need air conditioning most, you can rest assured your system will keep you cool.

Air Conditioning
Maintenance Tips

Just as important as routine professional HVAC service, homeowners can help to maintain the integrity of their system throughout the year.


Keep Units Clear Of Obstructions


Rinse Outside Coil With Water


*Check Air Filter


Turn Off Humidifier


Check Drain For Clogs


Check Thermostat


Schedule Regular Maintenance

*Your AC, and furnace, system air filters should be changed or cleaned regularly for the best efficiency. If your system has a reusable filter, simply take it out and clean it with mild soap and water and let it dry fully before putting it back. Our team recommends changing filters every 3 months.

Air Conditioning Repair

Poorly maintained or older systems can cause issues and sometimes result in the need for emergency AC repair.

Some of the common problems are leaks causing the system to lose refrigerant. This happens in older systems. While some AC leaks can be repaired, often this signals it might be time to consider replacement.

The fan motor in the outdoor condenser can also break down. It is exposed year round to the elements. While it is designed to weather the outdoors, if it is not properly maintained, dirt and debris can affect its working condition. Luckily, in an otherwise working AC system, most fan motor problems can be swiftly repaired.

Electrical components within the system can also cause AC failure. Components that keep the AC working, such as the capacitor and contactor unit are common failures. Signs that there is a failure include cool air not coming into the home. Wires can also become worn, or chewed through by outdoor rodents. In a properly maintained system, these repairs can be made and get homeowners back to cool status in no time.

Most AC issues occur from lack of maintenance, or improperly sized systems. These can lead to inefficiencies, making the system work harder. Most systems should last a long time, but if the system is 15 years or older, sometimes replacing it with a high efficiency system is the best option.

Air Conditioning Replacement

One of the best indicators of an AC in need of replacement is frequent repairs. If you find yourself scheduling multiple repairs, it is a sign that the system is no longer working as it should. Much like an older vehicle, once one part begins to fail on your AC, it is only a matter of time before it will break down completely. 

Another major factor in AC replacement versus repair is age. As systems age, they lose some efficiency. If they are not maintained, this will only lessen the lifespan of the air conditioning system. Our team recommends replacing older systems to more high efficiency systems and performing regular maintenance to get the most out of your system. Each year, systems become more and more efficient, so a newer AC may be the best answer. This can also help save money on energy costs. 

Our team will perform an extensive evaluation of your AC and provide an estimate to replace it designed specifically for your home cooling needs and property. An improperly sized system will only cause problems – that is why it is important to hire HVAC specialists.

Frequently Asked Questions

How Often Is AC Repair/Maintenance Necessary?

Just like a furnace, your AC needs annual service. During a seasonal tuneup, our team can clean, check, and inspect the system to keep it working and extend its lifespan. This also helps ensure the warranty remains intact. AC tuneups should be scheduled in the months prior to the hot season ensuring you have cool air when you need it most.

What Are Common Signs You Need An AC Repair?

If the home is not getting cool air, or cool air is not consistent throughout the home, it is a sign that a repair might be needed. If the system is cycling on and off, or making strange noises, or doesn’t turn on at all, it is time to call John Stevenson Plumbing, Heating & Air.

Can You Fix A Leaking AC Coil?

Most often, AC coil failures are a sign the system will have to be replaced. Your air conditioner has an evaporator coil in the outdoor condenser and an indoor coil. If one needs to be replaced, the other will as well as a new coil may be incompatible with the other leftover “working” coil. While they are separate and have their own functions, they work in harmony to remove warm air and replace it with cool air in the home. 

Causes of a failing coil can include the erosion of the coil from refrigerant and improperly maintained systems. Over time, they can become weak and lead to leaks, which will eventually cause the need for entire system replacement.

When Is It Time To Contact Professional Services?

Homeowners should call a professional HVAC company at least twice per year for annual maintenance: once in the fall before the winter months, and once in the spring before the summer months. A regularly maintained system is a happy system! 

If homeowners are experiencing issues in between services, contact the experts at John Stevenson. Our team can diagnose and solve any AC repair need. Often, homeowners will find they have an issue when the system simply doesn’t work, but should also be on the lookout for active signs of leaks in the outdoor condenser, inefficient cooling in the home, strange noises, and even strange smells.

Benefits Of Choosing John Stevenson


Up front and honest pricing


A full system evaluation prior to performing any work


Professionally trained, licensed, and certified HVAC technicians


5 Star Service Guarantee


Best in class warranties


Multiple repair or replacement options uniquely designed for you

John Stevenson Plumbing, Heating & Air is Here for All of Your Air Conditioning Repair Needs!

What To Expect From Our AC Repair And Maintenance Services

We value your time and investment, and know that dealing with a problem in your air conditioning is never fun, especially in the height of a San Diego heatwave. Our team is equipped to handle every AC repair need that comes our way. We use only the highest quality materials, and our team has the most extensive training in the county. 

If repair is not an option, we will provide multiple replacement solutions to fit your home comfort needs. We will assess the property and ensure that all of our options are the right size and fit for your family and budget. Our estimates are uniquely designed and tailored for each customer.  

After completion of work, our expert HVAC specialists will walk you through the job and take the time to answer any remaining questions; it’s all part of our 5 Star Service Guarantee!

Our customer service team will then follow up within 24 hours to make sure you are happy.