Commercial VRF/VRV System Repair in Burbank

VRF/VRV Repair Expertise for Burbank Facilities

Variable refrigerant systems are remarkable for zoning and energy efficiency—but when they fail, issues cascade across multiple zones. Our engineers specialize in isolating faults quickly, protecting business continuity for studios, production spaces, offices, medical suites, hospitality venues, and retail properties across Burbank’s Media District, Magnolia Park, Downtown Burbank, and the Airport District.

We service and repair commercial VRF/VRV systems from Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier, applying factory‑trained procedures and OEM‑aligned best practices. That includes methodical diagnostics, accurate charging, correct oil management, and verified communication integrity between outdoor units, branch selector boxes, and indoor fan coils.

Common Symptoms We Fix

• Zones failing to reach setpoint, temperature drift, or comfort imbalance
• High‑pressure/low‑pressure trips and intermittent lockouts
• Noise or refrigerant migration issues at branch selector boxes
• Electronic expansion valves (EEVs) stuck, hunting, or misaddressed
• Communication errors, offline fan coils, or control board faults
• Short cycling, high discharge temperature, or oil return concerns
• Refrigerant leaks, poor subcooling/superheat, or capacity loss

Our Repair Process

Every call starts with a structured diagnostic: visual inspection, fault code retrieval, addressing verification, and a heat‑balance sanity check. We measure refrigerant conditions, electrical health, and airflow to pinpoint the true failure point—not just the component that alarms.

• Controls and communication: network integrity, addressing, dip switch/parameter checks
• Refrigerant circuit: leak detection, nitrogen pressure testing, dehydration, accurate evacuation
• EEV and sensors: operation, feedback signals, and recalibration or replacement
• Power electronics: inverter drive evaluation, compressor winding checks, contactors, and boards
• Airside verification: coil cleanliness, fan performance, and static conditions affecting capacity

When leaks are present, we isolate, repair, pressure‑test, evacuate, and charge to the manufacturer‑specified mass. All handling follows industry‑standard, responsible recovery practices. Before sign‑off, we validate operation under load, confirm stable pressures and temperatures, and document findings so you have a clear service record.

Engineering Depth That Protects Your Investment

With 80+ years in engineering across four generations, we approach VRF/VRV repairs with a system‑level mindset. We consider building load profiles, zone diversity, piping topology, long line lengths, and BS‑box strategies to correct underlying causes—not just clear alarms. That means fewer repeat issues, better energy performance, and longer equipment life.

• Root‑cause focus: from installation pitfalls to control logic conflicts
• Efficiency first: restoring designed capacity and tuning comfort
• Clean, code‑conscious work: neat brazing, proper insulation, and labeling
• Clear communication: findings, options, and preventive recommendations

Brands and Systems We Service

We repair commercial VRF/VRV systems from Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier—leveraging factory exposure to their design philosophies and service procedures. Whether your site needs a precise board replacement, BS‑box repair, inverter evaluation, or a full refrigerant program after a leak, we align our work with manufacturer guidance.

Preventive Measures That Reduce Downtime

While we’re on site, we often recommend targeted preventive steps that pay off quickly.

• Periodic coil cleaning and airflow verification to maintain capacity
• Sensor calibration to prevent false trips and comfort drift
• Addressing and controls review to stabilize multi‑zone performance
• Documented leak checks on long piping runs and critical joints

Local, Family‑Run, Mission‑Driven

#1 AC Guys is a family business serving Burbank and the wider region—Los Angeles County, plus nearby Orange County, Ventura County, and Western Riverside County. Our mission is healthier indoor air for a healthier life, supported by careful, clean repairs that keep your people comfortable and productive.

Request Service

If your commercial VRF/VRV system in Burbank is showing alarms, losing capacity, or driving up energy use, bring in engineers who live and breathe variable‑refrigerant technology. Contact #1 AC Guys to schedule diagnostics, get a clear repair plan, and restore reliable comfort with confidence.

Ready to get started? Call us or request service online today. We’ll prioritize your uptime, communicate every step, and stand behind the work.