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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM secondary thermal safety control for the AMVC961005DNAA gas furnace and compatible Goodman/Amana models. Marked by its light blue housing, this auxiliary limit provides a backup high-temperature cutout — commonly mounted on the blower deck or near the heat exchanger — to shut down the furnace if temperatures exceed safe limits that the primary limit does not catch.
Like the primary limit, the light-blue color code sets the exact trip temperature for this position in the furnace. Installing the wrong rating causes nuisance shutdowns or defeats the safety. Our genuine OEM switch guarantees the correct setpoint, bracket, and terminal orientation — a drop-in match that generic universal switches cannot promise.
Easy (1/5). Cut power to the furnace, remove the mounting screws, move the two spade connectors to the new switch, and remount. About 15 minutes. Match the color code to the original before wiring.
Compatibility note: This OEM part is shared across Goodman and Amana furnaces.