Guardian

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Guardian tech fundamentals

HVAC brand families: who builds Carrier/Bryant/Payne/ICP, Goodman/Amana/Daikin, Rheem/Ruud, Trane/American Standard, Lennox/Allied, York/Coleman/Luxaire and Nortek

US residential split AC, heat pumps, furnaces and air handlers sold under about 40 badges by seven manufacturer families, current to 2026 (including Johnson Controls' residential business moving to Bosch in 2025).

2 components3 common failuresCarrier, Bryant, Payne, Day & Night, Heil, Tempstar, Comfortmaker, Arcoaire, KeepRite, Airquest, Goodman, Amana, Daikin, Janitrol, Rheem, Ruud, WeatherKing, Sure Comfort, Trane, American Standard, Ameristar, RunTru, Oxbox, Lennox, Armstrong Air, AirEase, Ducane, Concord, MagicPak, York, Coleman, Luxaire, Guardian, Champion, Evcon, Fraser-Johnston, Frigidaire, Maytag, Gibson, Westinghouse, Tappan, Intertherm, Miller

Brand names identify appliances only. OnCall Tech is not affiliated with or endorsed by Guardian.