AC Repair Alpharetta GA
One Hour Heating & Air Conditioning offers AC repair in Alpharetta, GA. Our emergency HVAC technicians fix central air conditioners, heat pumps, and ductless systems with issues like frozen evaporator coils, compressor failure, electrical faults, and refrigerant leaks. We use proper diagnostic tools to test components, including capacitors, contactors, control boards, and blower motors.
Why choose us?
- Punctual, friendly, and knowledgeable technicians
- Special offers and seasonal discounts
- 100% satisfaction guarantee
- Financing options for qualified customers
- Licensed technicians (GAREGCN2011384)
Call (404) 689-4168 for air conditioner repair service.
Prompt AC Repair Services For Alpharetta Homes
We offer prompt AC repair services in Alpharetta, Georgia, for component failures, electrical issues, refrigerant leaks, and airflow restrictions that prevent your system from maintaining cooling. We focus on resolving issues that affect indoor comfort, energy use, and component safety.
Our licensed technicians troubleshoot central air conditioners, ductless mini-splits, heat pumps, and SEER2-compliant systems using advanced diagnostic tools. We understand the urgency of AC failures in North Fulton, where high humidity and heat create discomfort and health risks. That's why we come to your Alpharetta home in fully stocked vehicles to fix most issues on the first visit.
We offer round-the-clock AC repair service throughout Alpharetta's 30004, 30005, 30009, 30022, and 30023 zip codes.
Call (404) 689-4168 for air conditioning repair service.
Common AC Problems We Fix
We fix common AC problems like frozen coils, electrical failures, refrigerant leaks, compressor issues, and poor airflow that lead to uneven cooling and high humidity.
Frozen Evaporator Coil
A frozen evaporator coil appears as ice buildup on the indoor unit and produces weak airflow with little cooling. This happens when restricted airflow prevents proper heat transfer, causing moisture on the coil to freeze.
Common causes of frozen evaporator coils include dirty air filters, blocked return vents, low refrigerant levels, or failed blower motors. Georgia's high humidity can make the issue worse, as excess moisture freezes quickly when airflow is limited.
Our technicians identify the root cause by testing static pressure, verifying blower motor operation, checking refrigerant charge levels, and inspecting ductwork for restrictions. Proper diagnosis prevents recurring freeze-ups and improves overall system performance.
Electrical Component Failures
The air conditioner's electrical components fail due to wear, heat exposure, or power surges that affect capacitors, contactors, and control boards. These regulate the compressor and fan motors, and failure in any of them can prevent the system from operating correctly.
Start and run capacitors store the electrical energy needed to initiate motor operation. When these fail, you hear clicking sounds without the system starting, or the AC breaker trips repeatedly. Contactors act as electrical switches controlled by the thermostat, and burned contacts prevent the outdoor unit from running.
We test capacitor ratings, inspect contactors for damage, and verify control board output using precision diagnostic tools. In some Alpharetta homes, wiring issues from improperly installed smart thermostats can also cause electrical malfunctions.
Refrigerant Leak Detection And Repair
Refrigerant leaks reduce cooling capacity, forcing the compressor to run continuously without achieving the set temperature. Low refrigerant causes lukewarm airflow, frozen coils, and eventual compressor failure if not addressed promptly.
Our experienced technicians use electronic leak detectors and nitrogen pressure testing to locate leaks in the evaporator coil, condenser, or refrigerant lineset. Once the leak is identified, we repair the affected section using proper brazing techniques, evacuate the system to remove moisture, and recharge it to manufacturer specifications using subcooling or superheat measurements.
We work with modern refrigerants like R-410A and R-32.
Compressor And Condensing Unit Issues
The compressor pumps refrigerant through the system and is one of the most expensive components to replace. In case of compressor failure, you will notice loud grinding noises that cause the breaker to trip immediately, or the outdoor unit will run without producing cold air.
The compressor fails due to hard start conditions, electrical problems, refrigerant flooding, or lack of maintenance. Our Alpharetta HVAC technicians test compressor windings for shorts or opens, verify voltage supply, and measure amp draw against manufacturer nameplate data.
The condensing unit can also fail due to worn fan motors, blocked coils, or failed capacitors. A non-operational condenser fan prevents proper heat rejection, causing the system to shut down. We check motor capacitors, inspect fan blades, and check airflow across the condenser coil to restore normal cooling operation.
Airflow And Humidity Control Problems
Inadequate airflow creates hot spots, increases humidity levels, and forces the system to run longer cycles without achieving the required cooling. This often results from clogged condensate drain lines, dirty blower wheels, or improperly sized ductwork.
A clogged condensate drain line can cause water backups that trigger float switch shutdowns or cause water damage. We clear drain lines using specialized tools and verify proper trap configuration to prevent airflow interference.
Blower motor issues, often identified by screeching sounds, can signal worn bearings, loose belts, or failing variable-speed modules. We inspect blower assemblies, clean fan wheels, and verify proper motor operation to restore full airflow.
Humidity problems also occur when the system short-cycles or doesn't run long enough to achieve proper moisture removal. We check the supply air temperature, refrigerant charge, and system capacity to confirm that your equipment is properly matched to your home's cooling needs.
Call (404) 689-4168 for an AC inspection in Alpharetta, GA.
Our AC Repair Process
At every service call, our technicians diagnose the issue, test components, explain what went wrong, provide flat-rate pricing, and fully restore your AC system.
Diagnostic & Evaluation
We start by checking your system to find the real cause of the problem. Our technicians arrive with professional tools like multimeters, thermal cameras, and pressure gauges. We ask what you've noticed, check thermostat settings, look for error codes, and inspect for visible issues such as frozen coils, water leaks, or tripped breakers. We also check whether the thermostat itself is causing the issue.
Component-Level Testing
We test each component to figure out what's working and what's not. Our AC technicians check capacitors, contactors, motors, refrigerant charge, and electrical readings. If the pressure is off, we look for leaks or blockages. We also test the expansion valve (TXV) and control board. This helps us understand whether your AC has airflow problems, electrical faults, or cooling issues.
Clear Explanation Of Findings
Once we've diagnosed the issue, we explain what went wrong, why it happened, and your repair options. We'll show you any damaged parts, explain normal wear patterns versus premature failures, and discuss whether additional issues may arise based on the system's age and condition. If there are multiple issues, we'll help you decide what to fix first based on cost, safety, and performance.
Flat-Rate Repair Quote
We provide you with upfront flat-rate pricing for AC repair before any work begins. The quote includes labor, parts, and any necessary components. We also explain any warranties and discuss financing if needed. If your system is old and repair costs are high, we'll help you weigh the pros and cons of replacement.
System Testing And Restoration
After repairs, we fully test your system. We check startup, cooling performance, airflow, refrigerant levels, and safety controls. We make sure your thermostat works properly and that everything responds as it should. Then we clean up the workspace and provide you with complete repair documentation.
Call (404) 689-4168 for AC repairs in Alpharetta, Georgia.
AC Repair Cost
AC repair costs depend on the type of issue, the system's age, and the parts required. Smaller repairs like replacing capacitors or contactors usually cost less than larger repairs involving compressors or refrigerant leaks. Pricing can also vary based on system efficiency, parts availability, and whether service is needed during evenings or weekends. Older systems may require hard-to-find parts or additional labor, which can affect overall cost.
We use upfront flat-rate pricing and explain repair options before work begins. All repairs are backed by a 100% satisfaction guarantee. If you are not satisfied with the service, we'll return to make it right at no extra charge.
Coupons & Special Offers
We offer seasonal coupons and limited-time promotions to help lower repair costs. Ask about current offers when you schedule service.
Financing Options
Financing is available for qualified customers to help manage unexpected repair expenses. Our team will review available options so you can choose what works best for your budget.
Join The Comfort Club
Enjoy priority service, repair discounts, annual tune-ups, and guaranteed same-day appointments (when you call before 2 p.m.).
Call (404) 689-4168 to schedule AC repair service.
Schedule AC Repair Today
Don't let AC failures compromise your family's comfort during North Fulton's hottest months. One Hour Heating & Air Conditioning provides fast, reliable air conditioning repair with transparent pricing and certified technicians.
Our licensed team diagnoses component failures accurately, explains findings clearly, and completes quality repairs that restore reliable cooling to your Alpharetta home.
Call (404) 689-4168 to book air conditioning repair service.
