Commercial Centrifugal Chiller Repair in Fullerton, CA

Why Fullerton Facilities Choose #1 AC Guys

We are a fourth‑generation family of engineers with 80+ years of engineering experience, focused on complex commercial HVAC. Our mission is healthy, efficient buildings—because healthy air and reliable cooling are the foundation of productivity and wellbeing. From medical campuses and data‑rich office towers to manufacturing and higher‑education facilities, we deliver repair strategies that safeguard uptime, energy budgets, and compliance.

Our engineers received in‑plant training from Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). We service most makes and models common to Southern California chiller plants and apply rigorous, data‑driven diagnostics that target root causes—not just alarms.

Expert Centrifugal Chiller Repair Capabilities

• Rapid failure diagnostics: surge root‑cause analysis, low lift conditions, capacity shortfalls, and recurring trip events
• Vibration testing and balancing for bearings, impellers, and couplings
• Oil system troubleshooting: oil chemistry, foaming, heater issues, level controls, and separator performance
• Refrigerant management: leak detection, evacuation, dehydration, charging, and performance optimization
• Heat‑transfer recovery: tube brushing, descaling, and eddy‑current testing for condenser/evaporator bundles
• Electrical and drives: VFD/VSD fault tracing, soft‑starter issues, power quality, and motor protection
• Controls and BMS: sensor calibration, setpoint optimization, and sequence tuning for part‑load efficiency
• Water‑side optimization: flow verification, delta‑T improvement, and condenser water enhancements
• Reliability upgrades and low‑GWP retrofit guidance when feasible

Our approach blends precision measurements with practical experience, ensuring repairs restore stability under your real operating conditions—weather, water chemistry, load diversity, and building schedules.

Our Process

• Stabilize: Verify safety interlocks, perform lockout/tagout, and protect assets before testing
• Diagnose: Instrument the plant (temps, pressures, vibration, amperage, flow) and trend data
• Isolate: Separate mechanical, electrical, and controls variables to identify the true fault
• Remedy: Execute corrective actions and component repairs with OEM‑grade parts and procedures
• Optimize: Tune controls, verify lift and approach temperatures, and confirm kW/ton improvements
• Validate: Provide a post‑repair report with readings, photos, trends, and recommendations

Preventive Maintenance That Pays Back

Repairs fix today’s problem; maintenance prevents tomorrow’s. We design PM programs around your equipment age, water quality, occupancy, and utility rates.

• Seasonal start‑up/shutdown and safety verification
• Tube cleaning schedules based on fouling factors and water treatment data
• Oil and refrigerant testing to track wear metals, moisture, and acid formation
• Vibration trending to catch bearing and rotor issues early
• Controls calibration and sequence reviews for part‑load stability
• Condenser water performance checks to reduce lift and improve kW/ton

Result: fewer emergency calls, longer asset life, and lower total cost of ownership.

Safety, Compliance, and Documentation

We follow EPA‑compliant refrigerant handling practices and adhere to Southern California codes and best practices, including AQMD considerations. Every repair includes clear documentation—instrument readings, photos, and corrective actions—to support audits, warranty discussions, and capital planning.

Serving Fullerton and Greater Orange County

We respond quickly across Fullerton—downtown, industrial corridors near the 91 and 57, and adjacent cities including Anaheim, Buena Park, Placentia, Brea, La Habra, and Yorba Linda. As a Los Angeles–based company, our service area also covers Los Angeles County, Ventura County, and Western Riverside County, ensuring consistent support across your portfolio.

Energy and Indoor Environment Benefits

Reliable chillers are the backbone of healthy indoor environments. By restoring proper lift, flow, and control sequences, we reduce energy waste, stabilize temperature and humidity, and support cleaner, healthier air throughout your buildings.
Healthy air. Healthy buildings. That’s our mission.

Transparent Pricing and Solid Guarantees

You get a clear diagnostic plan, an itemized repair scope, and straightforward pricing before work begins. We use quality components and stand behind our workmanship with written guarantees that align with industry standards.

Get a Fast Assessment Today

If your centrifugal chiller in Fullerton is tripping, surging, or underperforming, call #1 AC Guys for a rapid, engineering‑grade diagnosis and repair plan. We’re equipped for large and complex projects—and ready to restore your plant’s reliability and efficiency.