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The Goodman 0130F00038 Auxiliary Limit Switch (Light Blue) is a genuine OEM safety control for the Amana/Goodman AMES960803BNAA gas furnace. This secondary limit protects the blower and heat exchanger area by opening the control circuit if temperatures in its zone exceed a safe threshold, shutting the furnace down to prevent damage. The light-blue color code identifies the switch's specific trip temperature — matching that code is essential for correct protection.
Limit switches are keyed by color to a precise cut-out temperature. The OEM 0130F00038 guarantees the correct light-blue trip point and terminal layout. Installing a generic switch with the wrong rating can either fail to protect the furnace or cause frequent nuisance shutdowns.
Easy (1/5). Two screws and two spade terminals. Disconnect power before servicing, confirm the light-blue color match to the original, and verify continuity with a multimeter after installation.