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AC Repair in San Jose, CA

Providing Dependable Air Conditioning Service

When your air conditioner starts to show signs of aging or other problems, it’s best to contact a professional as soon as possible. The sooner our AC Repair specialists in San Jose can get to work on your malfunctioning unit, the sooner your home can be cool again.

Don’t suffer through another hot day in California - DG Heating & Air Conditioning is here to help save you money, time, and hassle. Our qualified AC service technicians are standing by.

Need AC repair in San Jose, CA? Call (408) 669-3496 or contact us online!

Our HVAC contractors are dedicated to providing excellent customer service and delivering reliable results on every job. We have over 30 years of combined experience providing fast and dependable AC repair in San Jose, CA. Trust our expert team to take care of your air conditioning!

Should You Repair or Replace Your Air Conditioner?

No matter which style of air conditioner you have in your San Diego home, whether it’s central air, a heat pump, or a ductless mini-split, as your unit ages, it will become less efficient.

Depending on the reason that your air conditioner is malfunctioning, AC repairs or replacement may be the most cost-effective solution.

The best way to determine which is right for your unit is to call DG Heating & Air Conditioning for expert advice.

Signs Your Air Conditioning System Needs Repair

  • Your air conditioner is less than 10 years old
  • You smell unusual or unpleasant odors
  • You notice pooling water or leaks near your unit
  • You hear strange sounds, such as clanking or banging
  • You notice performance or airflow issues

When is a New AC Installation Likely the Best Route?

  • Your air conditioner is over 15 years old
  • Your repair costs are becoming too high
  • Your energy bills continue to increase
  • Your AC is steadily declining in efficiency

How Can You Troubleshoot Your AC Before Calling a Technician?

Before calling a technician, you can perform some basic troubleshooting steps to identify and possibly resolve common issues with your air conditioning system. Keep in mind that if you're not comfortable or familiar with these tasks, it's best to consult a professional technician. 

Here are some steps you can take:

  • Check the Thermostat: 
  1. Ensure that the thermostat is set to the desired temperature. 
  2. Confirm that the thermostat is powered and the display is functioning properly. 
  3. If your thermostat uses batteries, replace them.
  • Inspect the Air Filter: A dirty or clogged air filter can restrict airflow and reduce efficiency. Check the filter and clean or replace it if necessary. Refer to your AC unit's manual for guidance.
  • Examine the Circuit Breaker: Check the circuit breaker for the AC unit in your electrical panel. If it's tripped, reset it. If it trips again, there may be an underlying issue, and you should contact a professional.
  • Inspect the Air Vents and Registers: Ensure that all air vents and registers are open and unblocked. Blocked vents can restrict airflow and affect cooling efficiency.
  • Clean the Condenser Coils: If you have access to the outdoor condenser unit, visually inspect it for dirt, debris, or vegetation. Clean any debris and use a gentle stream of water to clean the condenser coils. Ensure the power is off before cleaning.
  • Check for Refrigerant Leaks: Inspect the refrigerant lines for any signs of leaks, such as oil stains or wet spots. If you suspect a refrigerant leak, it's crucial to contact a professional technician.
  • Inspect the Ductwork: Check for visible damage or disconnected ducts. Leaks or blockages in the ductwork can impact the system's performance.
  • Listen for Unusual Noises: Turn on the AC and listen for any unusual sounds. Squealing, grinding, or banging noises could indicate a problem with the fan or other components.
  • Check the Evaporator Coil: If accessible, check the evaporator coil for any signs of ice or frost. This may indicate issues with airflow or refrigerant levels.
  • Verify the Fan Functionality: Ensure that both the indoor and outdoor fans are running. If either is not working, it could be a motor or capacitor issue. 

If you've gone through these steps and the issue persists, or if you're unsure about any aspect of the troubleshooting process, it's advisable to contact a qualified HVAC technician. They have the expertise and tools to diagnose and address more complex problems with your AC system.

Commonly Asked Questions

How often should I have my air conditioner serviced?

It is recommended to have your air conditioner serviced at least once a year. Regular maintenance can help prevent major issues and keep your unit running efficiently.

What can I do to extend the lifespan of my air conditioner?

To extend the lifespan of your air conditioner, you should keep the filters clean, ensure proper airflow, and schedule regular maintenance with a professional technician.

What are some common causes of air conditioner malfunctions?

Some common causes of air conditioner malfunctions include dirty filters, refrigerant leaks, electrical problems, and issues with the fan or compressor.

How can I improve the energy efficiency of my air conditioner?

To improve the energy efficiency of your air conditioner, you can set the thermostat to a higher temperature, use ceiling fans to circulate air, and ensure proper insulation in your home.

What should I do if my air conditioner is blowing warm air?

If your air conditioner is blowing warm air, you can check the thermostat settings, clean or replace the air filters, and make sure the outdoor unit is not blocked by debris. If the issue persists, it is best to contact a professional for assistance.

What types of systems do our technicians have experience repairing? 

  • Zoned systems
  • Heat pumps
  • Central air systems
  • Ductless splits

We know how important a properly functioning air conditioner is, especially in California. That’s why we prioritize fast response times and attentive AC repairs for all our customers. Don’t go through another hot day without air conditioning!

Contact DG Heating & Air Conditioning at (408) 669-3496 for all your AC repair needs throughout San Jose, CA.

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When you need fast, reliable, and effective services, call DG Heating & Air Conditioning at 408-669-3496. We offer free estimates and same-day appointments!