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The Goodman 0130F00038 is a genuine OEM auxiliary limit switch — color-coded light blue for its specific trip temperature — designed for the ADSS800804BXAA gas furnace and compatible Goodman/Amana equipment. As a secondary safety device, this normally-closed thermal switch protects a specific zone of the furnace (such as the blower deck or auxiliary plenum) from overheating, shutting down heating operation before damage occurs.
Auxiliary limits are temperature-matched safety parts; the light-blue code marks a different set point than the primary (pink) limit. Substituting a generic switch risks nuisance shutdowns or, worse, disabled overheat protection. This OEM part delivers the exact factory trip point, bracket, and terminal placement.
Easy (1/5) — Two screws, two spade connectors, roughly 15 minutes. Disconnect power first and verify the color code and part number match your removed switch before installing.
Genuine Goodman safety component. Fitment questions? Email info@nationalhvacparts.com.