Reviewed by Boris L., Commercial HVAC Tech, NATE Certified
Before you call
Common signs you may need commercial hvac repair
Cooling problems usually start as comfort or performance issues before the system stops working altogether.
- Warm air, weak airflow, or a system that runs without cooling the house properly.
- Frequent cycling, loud noises, leaks, or rising energy bills without a clear reason.
- A sudden breakdown during Sacramento heat when fast service matters most.
Heads up: If your commercial system is completely down, calling is usually the fastest way to get help.
Service details
The overview below explains how this service works, common problems we see, and what Sacramento homeowners should expect before scheduling.
A failed HVAC system means unhappy employees, discomfort for customers, and potential loss of revenue. Sacramento's 100°F+ summer heat makes commercial HVAC reliability critical from June through September. PULSE HVAC provides fast, professional repair service for businesses throughout the Sacramento area.
Commercial Systems We Service
Rooftop Package Units (RTUs)
The most common commercial HVAC equipment in Sacramento — self-contained units mounted on flat or low-slope roofs containing the compressor, condenser, evaporator, and blower in a single cabinet. We service all major brands including:
- Carrier (WeatherMaker, Rooftop series)
- Trane (Precedent, Voyager, IntelliPak)
- Lennox (LGH, LGA, LCH series)
- York (Predator, ZJ series)
- Daikin (DPS, DCC series)
- Rheem/Ruud commercial lines
Split Systems
Multi-zone split systems common in office buildouts, medical offices, and mixed-use spaces. We service standard commercial split systems and advanced VRF (variable refrigerant flow) systems from Mitsubishi, Daikin, LG, and Samsung.
Packaged Terminal Units (PTACs)
Common in hotel rooms, extended-stay suites, and individual office spaces. We diagnose and repair PTAC units from all major manufacturers.
Chilled Water Systems
For larger commercial buildings, we service chiller components, AHUs, and fan coil units that make up chilled water systems.
Commercial Furnace Repair and Commercial Heating
Commercial heating in the Sacramento area is usually one of three things, and all three are covered here:
- The gas heat section inside a rooftop package unit — by far the most common. When a business says its commercial furnace has failed, this is nearly always the appliance: the burner, igniter, flame sensor, gas valve, and heat exchanger built into the RTU cabinet.
- A standalone commercial furnace or unit heater — suspended gas-fired heaters in warehouses, shops, and garages, typically 100,000–400,000 BTU.
- A commercial heat pump — increasingly common on retrofits driven by SMUD electrification incentives. See commercial heat pump.
Commercial furnace repair differs from residential in three ways that matter for scheduling and cost: units are larger and staged, roof access needs fall protection and sometimes a lift, and a failed heat exchanger on a commercial unit often means replacing the whole heat section rather than a single part.
Common Commercial HVAC Problems
Compressor failure — The most expensive repair; often preventable with regular maintenance. We assess whether repair or replacement is more cost-effective for your situation.
Refrigerant leaks — In commercial systems, refrigerant loss is often gradual. Signs include reduced cooling capacity, ice on refrigerant lines, and elevated electricity consumption.
Economizer failures — Commercial RTUs often include economizers that use outdoor air for free cooling. Faulty economizer actuators and sensors are a common service item in Sacramento.
Ignition and heat exchanger issues — In units with gas heat, igniter failures and heat exchanger cracks are common service calls in fall and winter.
Controls and BAS integration — Modern commercial systems integrate with building automation systems. We diagnose and repair control board failures, sensor issues, and BAS communication problems.
Dirty coils — Sacramento's dust and agricultural particulates clog commercial condenser and evaporator coils faster than in many other markets. Dirty coils reduce efficiency and can cause compressor failure.
Why Commercial HVAC Requires Specialist Service
Commercial systems differ from residential in important ways: higher voltage (208V–480V three-phase), larger refrigerant charges requiring EPA Section 608 certification, complex controls and economizer systems, and rooftop access requirements. Our technicians are trained specifically on commercial equipment and carry appropriate certifications.
We provide detailed service records after every visit — documentation that's valuable for warranty claims, equipment tracking, and building management systems.