Fall Commercial HVAC Checklist for DFW Business Owners
North Texas fall is short and unpredictable — temperatures can swing 40 degrees in 24 hours, and the first cold snap often arrives before anyone has checked the heat. For commercial properties in McKinney, Frisco, Plano, Allen, and surrounding DFW areas, fall is the time to catch what summer left damaged and prepare heating systems that may not have run in six months.
TechBridge Pacific HVAC corp recommends the following checklist for commercial properties each fall.
Cooling System — Post-Summer Assessment
- Condenser coil cleaning — summer dust, cottonwood, and grease build-up; clean before the unit sits dormant
- Refrigerant charge check — if cooling performance degraded in summer, a leak may have developed
- Compressor electrical check — capacitors and contactors wear fastest under summer load; replace before they fail mid-winter on a heat pump system
- Economizer inspection — fall is economizer season; a stuck damper wastes energy all winter
Heating System — Before First Use
- Heat exchanger inspection — for gas heat RTUs; a cracked heat exchanger is a carbon monoxide risk and must be addressed before operating
- Gas valve and igniter check — components that sit unused all summer can fail on first call for heat
- Sequencer and electric heat check — for electric heat strips; verify all stages energize
- Thermostat/controls test — switch to heat mode and verify the system responds correctly before temperatures drop
Refrigeration (Restaurants and Retail)
- Door gaskets and seals — summer humidity takes a toll on gaskets; check and replace worn seals before winter heating season increases interior humidity swings
- Defrost cycle check — verify defrost timers and heaters are operating correctly going into fall
Building Envelope and Controls
- Check programmable thermostat or BMS schedules for daylight saving time and fall setpoints
- Verify exhaust fans and make-up air systems are clean and operational
- Inspect rooftop curb seals and unit panels — summer storms can loosen panels and damage weatherstripping
Schedule Before the Rush
HVAC contractors in DFW get busy fast when the first cold snap hits and everyone discovers their heat doesn’t work. Fall service visits scheduled in September and early October get priority scheduling and avoid emergency rates.
TechBridge Pacific HVAC corp offers fall commercial HVAC service across Collin County and DFW. Call (469) 609-6204 or ask about our commercial maintenance agreements which include scheduled fall service.
Frequently Asked Questions
When should I schedule fall HVAC service for my commercial building? September–October in DFW. Before the first cold snap, while scheduling is flexible and parts are available.
What’s a heat exchanger and why does it matter? The heat exchanger separates combustion gases from supply air in a gas furnace or RTU. A crack allows carbon monoxide to enter the supply air stream — a life safety issue that requires immediate repair or unit replacement.
Do heat pump RTUs need fall service too? Yes — heat pumps run year-round and the refrigerant system is active in both heating and cooling mode. Fall service checks the reversing valve and defrost controls.