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The Goodman 0130F00038 is a genuine OEM auxiliary limit switch (identified by its light blue housing) engineered for the ACVC80803BXCA 80% AFUE two-stage variable-speed gas furnace. This thermally activated safety control monitors heat exchanger and blower compartment temperatures, opening the circuit to shut off the burners if the furnace overheats — protecting the equipment and your home from unsafe conditions.
This is a factory OEM Goodman component built to the exact trip temperature and mounting spec of your furnace. Generic limit switches may carry a different cutoff rating, leading to nuisance lockouts or, worse, failure to trip. For a safety control, OEM-matched temperature calibration is strongly recommended.
Easy (1/5) — A two-wire spade connection and two mounting screws. Always disconnect power before servicing. Professional installation recommended if you are unsure of the furnace's safety wiring.