Commercial Furnace Repair in Glendale — AC PRO Service by #1 AC Guys

When the heat goes out, your business cannot afford guesswork. #1 AC Guys delivers precise commercial furnace repair in Glendale for AC PRO systems—focusing on safety, speed, and long‑term performance. Our engineering roots span four generations and 80+ years in engineering, so we approach every repair with factory‑grade procedures and measurement‑driven decisions.

What we repair on AC PRO commercial furnaces

• Ignition and flame sensing: hot surface igniters, flame rods, flame rectification issues
• Blowers and airflow: motors, bearings, belts, wheels, and static pressure corrections
• Heat exchangers and safeties: limit switches, rollout, high‑temp trips, and exchanger assessments
• Gas train and combustion: valves, regulators, manifold pressure, and combustion tuning
• Electrical and controls: boards, relays, contactors, transformers, and thermostat/BMS integration
• Packaged/RTU components: economizers, dampers, actuators, filters, and coil cleanliness
• Venting and flue draft: draft issues, condensate routing, and venting code compliance

Precision diagnostics that cut downtime

We start with a baseline assessment—verifying power, gas supply, airflow path, and control logic—then move to targeted testing. Combustion analysis, manifold pressure checks, flue draft, and CO/CO₂ readings ensure safe, efficient burn. We measure temperature rise, external static pressure, and motor amperage to detect hidden restrictions or failing components. This engineering‑first approach prevents repeat callbacks and reduces operating cost over the season.

Repair process and timeline

1) Diagnose and stabilize
2) Present clear options and pricing
3) Perform code‑compliant repairs with OEM‑spec parts where available
4) Commission the system: verify combustion, airflow, safeties, and control sequences
5) Provide documentation and maintenance recommendations

Healthier indoor air for productive workplaces

Our mission is healthy air for healthy life. Every repair considers IAQ: proper ventilation rates, filtration fitment and MERV ratings, CO monitoring best practices, and clean burners/heat exchangers for reduced contaminants. Cleaner, balanced airflow helps stabilize temperatures across zones and improves comfort for staff and customers.

AC PRO expertise for complex commercial sites

From multi‑zone offices and retail centers to medical suites, schools, and light industrial, we handle complex AC PRO furnace and packaged system repairs. We work to meet California Mechanical Code and Title 24 energy requirements while aligning with manufacturer best practices. Our engineers have trained at manufacturer facilities with Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China), applying rigorous factory methods to your commercial heating equipment.

Preventive maintenance that pays back

• Seasonal tune‑ups with combustion and safety checks
• Filter strategy and airflow optimization to protect heat exchangers
• Belt, bearing, and motor inspections to prevent mid‑season failures
• Controls calibration and economizer performance verification
• Documentation for property managers and compliance needs

Local, responsive service

We prioritize Glendale—including Downtown Glendale, Brand Blvd corridors, and nearby Burbank, Pasadena, and Eagle Rock—while serving Los Angeles County and adjacent Orange County, Ventura County, and Western Riverside County. Same‑day diagnostics are often available, and we schedule repairs to minimize business disruption.

Why businesses choose #1 AC Guys

• 80+ years in engineering; fourth‑generation family team
• Specialists in commercial and complex projects
• Factory‑trained experience with Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• AC PRO commercial furnace repair with measurement‑driven diagnostics
• Code‑aware, safety‑first workmanship and clear communication
• Transparent estimates and options to fit budget and timeline

Repair today. Perform better tomorrow.

Restore reliable heat now and reduce future risk with smart, engineering‑led repairs. Whether it’s an ignition fault on a rooftop unit, airflow imbalance across zones, or a control failure that keeps tripping safeties, #1 AC Guys gets your AC PRO commercial furnace back on line—cleanly, safely, and efficiently. Ready to schedule? Contact us to book diagnostics in Glendale and across Los Angeles County, with service available in neighboring counties as well.