Commercial Chiller Repair in Rialto, CA

In Rialto, chilled water systems are the backbone of comfort and process reliability for offices, logistics hubs, healthcare, education, and manufacturing. #1 AC Guys brings an engineering‑first approach to commercial chiller repair so your operation stays online, efficient, and compliant—day after day.

Comprehensive commercial chiller repair

We service air‑ and water‑cooled units across centrifugal, screw, and scroll platforms. Whether your issue is electrical, refrigerant‑side, or hydronic, our engineers execute precise repairs that restore design performance and improve energy intensity.

• Compressors, soft starters, contactors, VFDs, motor controllers
• TXVs/EXVs, refrigerant leaks, subcooling/superheat optimization
• Evaporators, condensers, tube cleaning and descaling
• Flow, pressure, and temperature sensors; differential pressure switches
• Control boards, BMS integrations, safeties, staging and sequencing
• Pumps, strainers, expansion tanks, air separators, valves, actuators
• Cooling towers: fans, gearboxes, basins, nozzles, drift eliminators

We handle urgent stabilizations and planned repairs with the same rigor, documenting every step for clarity and auditability.
Our mission is healthier indoor air and stable comfort—built on engineering‑level reliability.

Engineer‑grade diagnostics and clear process

We don’t guess—we measure. Our diagnostic workflow is structured to find the true failure mode and prevent repeat faults.

• Trend data capture: amps, kW/ton, delta‑T, approach temps, vibration
• Electrical testing: insulation resistance, power quality, harmonics
• Refrigerant analysis: charge validation, leak pinpointing, oil checks
• Hydronic verification: GPM, valve authority, VFD tuning, air removal
• Controls review: sensor calibration, safeties, alarms, staging logic

You receive a prioritized action plan: immediate risks, corrective repairs, and optional optimizations—so you can make fast, informed decisions.

Water‑ and air‑side health

Many chiller problems start on the water side. We restore flow and heat‑exchange efficiency to protect capacity and compressor life.

• System flushing, strainer service, and coil/tube cleaning
• Cooling tower maintenance and basin hygiene to limit fouling
• Water treatment coordination, glycol management, and corrosion control
• Balancing and sensor placement for accurate control feedback

Result: stable setpoints, tighter control bands, and lower energy use.

Controls and BMS integration

From stand‑alone controllers to site‑wide BACnet/Modbus systems, we correct sensor drift, rebuild sequences, and align staging with real‑time load. We ensure the chiller, pumps, VFDs, and air handlers operate as one coordinated plant—delivering comfort and IAQ with fewer starts, less short cycling, and better kW/ton.

Preventive maintenance and efficiency upgrades

Extend equipment life and uncover savings with data‑driven PM and upgrades.

• Seasonal commissioning and performance verification
• Vibration and oil analysis to anticipate mechanical wear
• Variable primary flow setup and VFD optimization
• Smart alarming, trend logging, and remote insights
• Tower retrofits, nozzle upgrades, and drift reduction

Our recommendations target measurable outcomes: capacity recovery, energy reduction, and fewer service calls.

Industries we serve in Rialto

• Warehousing and logistics centers along the I‑210 corridor
• Retail, offices, mixed‑use, and hospitality
• Healthcare and medical offices with strict comfort needs
• Light manufacturing and process cooling
• Education and public facilities

Every facility has unique risk and comfort thresholds. We tailor repair strategies to your occupancy, process loads, and compliance requirements.

Why #1 AC Guys

We are a fourth‑generation family of engineers with 80+ years in engineering. Our team has trained at the factory with Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That discipline shows in how we diagnose, repair, and commission complex commercial systems—especially large, multi‑component plants.

We’re a Los Angeles‑based, family‑run company committed to cleaner, healthier indoor air and dependable cooling that supports healthy lives and productive workplaces.

Service area and response

We serve Rialto and the Inland Empire via our Western Riverside route, with broader coverage across Los Angeles County and nearby areas including Orange County and Ventura County. Fast dispatch, clear communication, and engineer‑level documentation come standard.

Ready to restore uptime and efficiency?

Request a chiller assessment today. We’ll deliver a straightforward plan to stabilize temperatures, cut energy waste, and prevent repeat failures—so your Rialto facility can operate with confidence.