Commercial Air Chiller Repair in Ontario, CA | #1 AC Guys

Commercial Air Chiller Repair, Engineered for Ontario, CA

When your air chiller underperforms, energy costs climb, comfort drops, and operations slow. #1 AC Guys brings four generations and 80+ years in engineering to every service call, applying rigorous diagnostics and factory-informed practices to restore AC PRO and compatible chiller systems to peak performance.

What We Repair

• Air-cooled and water-cooled chillers (scroll, screw, and centrifugal)
• AC PRO chillers and allied air systems, heat exchangers, coils, and air handlers
• Pumps, valves, strainers, expansion tanks, and hydronic balancing
• Controls, sensors, safeties, BMS integrations, and VFD optimization
• Refrigerant circuits: leaks, charging, superheat/subcool verification, oil management
• Electrical and power issues: contactors, relays, capacitors, wiring, and grounding

Symptoms That Signal You Need Service

• Rising kW/ton, utility spikes, or poor partial-load efficiency
• Frequent trips, nuisance alarms, or short cycling
• Unstable leaving-water temperatures or building hot/cold spots
• High head pressure, low suction, icing, or unexpected noise/vibration
• Slow pull-down after startup or frequent manual resets

Our Proven Repair Process

• Root-cause diagnostics: thermography, pressure/temperature mapping, electrical testing, and flow verification
• Targeted repairs: refrigerant leak isolation, component replacement, control recalibration, and VFD tuning
• Performance recovery: coil cleaning, water treatment guidance, glycol and setpoint optimization
• Validation: capacity checks, trend logging, and commissioning-grade documentation
• Prevention: recommendations for maintenance intervals, filtration, and IAQ improvements

Factory Training That Matters

Our technicians are factory-trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). This advanced training strengthens our understanding of modern chiller design, controls, and safety standards—skills we apply to AC PRO and compatible commercial systems in the field.

AC PRO Focus and Parts Support

We service AC PRO chillers and air systems and source OEM or approved aftermarket parts through trusted local supply channels. From sensors and valves to coils and drives, we prioritize high-availability components to reduce downtime and keep your Ontario facility productive.

Healthy Air Is Our Mission

Healthy air supports healthy lives. Beyond getting your chiller running, we help improve indoor air quality by stabilizing temperatures and humidity, verifying airflow, and recommending filtration and coil hygiene practices that protect occupants and equipment.

Industries We Serve

• Office and retail centers
• Manufacturing and warehouses
• Hospitality and entertainment venues
• Healthcare clinics and medical offices
• Education and public facilities
• Data rooms and technology spaces

Serving Ontario and Greater Los Angeles

Based in Los Angeles and serving Ontario, CA, we cover Los Angeles County and nearby regions including Orange County, Ventura County, and Western Riverside County. If your site sits along the I-10 or SR-60 corridors, we can deploy quickly with the right tools and parts to get you back online.

Why Choose #1 AC Guys

• 80+ years of engineering expertise, fourth-generation family business
• Factory-trained by Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• Specialists in complex commercial projects and BMS-integrated systems
• Commissioning-grade diagnostics and transparent, itemized estimates
• Safety-first workmanship and respect for your operations
• Actionable maintenance plans to extend equipment life and lower total cost

Get Started Today

Don’t let an ailing air chiller disrupt your business. Schedule a commercial chiller assessment in Ontario, CA, and our engineers will deliver a clear plan to restore capacity, trim energy use, and improve indoor air quality. Partner with #1 AC Guys—the team that treats every system like a mission-critical asset.