AJ's Air Conditioning & Heating | Experienced HVAC Services in Waldorf, MD

This is a common issue during our hot summers. It's often caused by a refrigerant leak, a frozen evaporator coil due to poor airflow from a dirty filter, or a failing compressor. Our technicians perform a thorough diagnostic to pinpoint the exact cause, whether it's a simple fix like cleaning the coil or a more complex repair, and get your system cooling efficiently again.

Signs include your HVAC system not turning on or off as scheduled, rooms feeling hotter or cooler than the set temperature, or a blank or unresponsive display. These problems can stem from wiring issues, dead batteries, or internal component failure. We test and calibrate your thermostat to ensure it's communicating correctly with your system, and we offer expert replacement with modern, reliable models if needed.

A complete loss of cooling or a refrigerant leak are top priorities. A leak not only stops your AC from working but can also damage the compressor—the heart of your system—leading to a much costlier repair. If you notice weak airflow or warm air from vents, call us promptly. We provide emergency service to address critical failures and protect your system from further damage during peak heat.