Both brands are solid. True has a longer track record in the U.S. and a parts network that’s hard to beat. Turbo Air runs more efficiently out of the box and tends to cost less upfront. Which one holds up better over time? From what I see in the field, the answer depends more on how the unit is maintained than which name is on the door.
The basics: what each brand is
True Refrigeration has been manufacturing in O’Fallon, Missouri since 1945. Their reach-ins are everywhere, from corner delis to hospital kitchens. Parts are stocked at most restaurant supply houses, and any tech who’s worked commercial refrigeration for more than a year has opened a True cabinet.
Turbo Air was founded in 1997 and is headquartered in Long Beach, California, with manufacturing in Korea and elsewhere. They compete on efficiency ratings and price point. You’ll see them in newer buildouts and chains that are spec’ing on energy costs.
Both use refrigerants in the R-290 or R-404A/R-448A family depending on model and year. Both have compressors sourced from recognizable suppliers. Neither is junk.
What actually breaks, and where the brands differ
Compressor failures happen on both. On True units, I see compressor calls more often on older, higher-hour cabinets that have never had a condenser cleaning. The condensers on some True models are tucked in a bottom-front location that gets caked with grease in a kitchen environment. On Turbo Air, the compressor compartment is more accessible on most models, but the units run tighter tolerances on refrigerant charge, so an improperly repaired leak that’s slightly off on recharge will stress the compressor faster.
Door gaskets wear out on both brands at roughly the same rate. This is a high-frequency call I get. A failing gasket causes the unit to run longer, frost builds up, and eventually the box can’t hold temp. On True, gaskets are usually a direct part number and easy to source same day. Turbo Air gaskets are available but sometimes require a day or two if the distributor doesn’t stock that specific frame size.
Evaporator fan motors are another common failure on both. Newer commercial reach-ins across the industry have moved toward electronically commutated (EC) fan motors, which are more efficient but also more expensive to replace than the older shaded-pole style. If you’re buying a newer unit from either brand, ask what type of fan motor it runs, because that affects your repair cost when it eventually fails.
Temperature control boards and electronic controllers have gotten more complex on both brands as models have gotten smarter. More electronics means more electronics that can fail. True’s older models with mechanical thermostat setups tend to be simpler to diagnose, though newer True units have electronic controls too.
Defrost issues are more common on Turbo Air in my experience, particularly in high-humidity kitchens. Their defrost cycles can be finicky if the timer or sensor drifts. On True, defrost calls are less frequent, but when they do happen, the heater elements are straightforward to replace.
How a tech diagnoses these units
First thing I check is the condenser coil. If it’s loaded with lint and grease, most symptoms (high head pressure, short cycling, inability to pull down temp) trace back to that. Clean the coil before condemning anything else.
Then I look at the refrigerant system: suction and discharge pressures, superheat, subcooling. A True that’s been properly maintained will have predictable system pressures. A Turbo Air with a small leak that someone topped off without finding the source will show erratic superheat, and you’ll find oil stains near the service valves if you look.
Electronic controllers get checked last. Pull the fault history if the unit has one, check sensor readings against a calibrated thermometer. Most board failures on both brands show up as temperature runaway or a locked-out compressor with a flashing light sequence, not mysterious mid-range behavior.
What you can do yourself
Cleaning the condenser coil is owner-safe on most reach-ins. Pull the front grille or bottom panel (varies by model), use a coil brush or compressed air, and do it every 60-90 days in a busy kitchen. This one task prevents more compressor calls than anything else.
Inspecting door gaskets is also safe. Close the door on a dollar bill. If you can pull it out without resistance, the gasket isn’t sealing. Gasket replacements on both brands are DIY-possible if you’re comfortable with basic tools, but be precise with the frame dimensions when you order the part.
Checking door hinges and closers is worth doing too. A door that doesn’t self-close will short-cycle the refrigeration system and wear the gasket faster.
Stop there. Anything involving the refrigerant circuit, the compressor, or the electrical controls should go to a licensed tech. R-290 (propane-based) refrigerant in particular requires specific handling, and it’s in a growing number of current-production units from both brands.
When to call a pro
Call when the unit can’t hold temperature, when you hear the compressor cycling on and off every few minutes, when there’s ice building up on the evaporator coil, or when any part of the refrigerant circuit has been opened. These aren’t situations where waiting helps.
Parts availability for both brands in the Bay Area is generally good, but Turbo Air boards and specialty components can take longer to source than True parts. Worth knowing when you’re deciding how much downtime you can absorb.
If you’re in the Bay Area and need a hand with either brand, we work on both at Bay Area Refrigeration Service. Same or next-day availability most of the time, and we carry common parts on the truck.