Expert RTU System Repair in Southern California

Your commercial building’s rooftop unit (RTU) is the heart of your HVAC system, working tirelessly to maintain a comfortable environment for employees and customers. When it fails, operations can grind to a halt. Understanding common RTU problems can help you act quickly and prevent costly downtime. This guide covers frequent issues and explains why ASP Engineering, Inc. is the trusted choice for commercial HVAC repair across Los Angeles County, Ventura County, and Orange County.

Common RTU System Issues Facility Managers Face

Even the most durable commercial HVAC systems encounter problems. Being aware of these issues helps you identify them early, saving your business from more extensive and expensive repairs down the line. Here are some of the most common failures we see with rooftop units.

Refrigerant Leaks

Refrigerant is the vital fluid in your cooling system, absorbing heat from inside your building and releasing it outside. A leak not only diminishes your RTU’s cooling power but also poses an environmental risk and can lead to compressor damage.

You might have a refrigerant leak if you notice:

• The unit runs constantly but doesn’t cool effectively.
• Ice or frost builds up on the copper refrigerant lines.
• Your facility’s energy bills have suddenly increased.

Our technicians are skilled in detecting and repairing refrigerant leaks, recharging the system, and ensuring it operates efficiently and safely. Timely RTU system repair in Los Angeles County can prevent compressor failure, a much more serious and costly problem.

Electrical Problems

RTUs are complex machines with numerous electrical components, including capacitors, contactors, fuses, and wiring. A failure in any of these parts can cause the entire system to shut down unexpectedly, leaving your building without heating or cooling.

Signs of electrical trouble include:

• The unit will not turn on.
• The circuit breaker frequently trips.
• You hear buzzing or humming sounds from the unit.
• You notice a burning smell near the RTU.

Attempting to fix electrical issues without professional training is extremely dangerous. The licensed technicians at ASP Engineering, Inc. have the expertise to diagnose and resolve these problems safely, restoring power and function to your HVAC system.

Airflow Issues

Consistent and proper airflow is critical for both comfort and system efficiency. Blockages or component failures can restrict air movement, leading to poor performance and increased strain on your RTU.

Common causes of airflow problems are:

• Dirty Filters: Clogged filters are a leading cause of reduced airflow. They force the system to work harder, increasing energy use and leading to premature wear on motors and fans.
• Fan and Blower Malfunctions: A failing fan motor or a damaged blower wheel can significantly impede the flow of conditioned air into your space.
• Blocked Ducts: Debris, damage, or poor design in the ductwork can create bottlenecks that disrupt air distribution throughout your building.

If you notice weak airflow from your vents or uneven temperatures across your facility, it’s time to call for commercial HVAC repair in Ventura County. We can diagnose the root cause and implement the right solution, from simple filter replacement to comprehensive duct inspection.