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The Goodman 0130F00038 auxiliary limit switch is a genuine OEM safety control designed for AMEC960603ANAB furnaces and compatible Goodman/Amana gas furnace platforms. This light-blue high-limit switch monitors heat-exchanger and plenum temperatures and cuts power to the burners if the furnace overheats, protecting the unit and your home from unsafe operating conditions.
This is a factory OEM part built to Goodman's exact temperature trip-point and mounting specifications, ensuring correct cut-out timing and a guaranteed fit. Generic limit switches may trip at incorrect temperatures, causing nuisance shutdowns or failing to protect the unit. For a safety-critical control, OEM is strongly recommended.
Difficulty: Easy (2/5). Requires disconnecting furnace power, removing the two mounting screws, transferring the wire leads, and reinstalling. A multimeter is helpful to confirm continuity. Always shut off power and gas before servicing.