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The Goodman 0130F00038 Auxiliary Limit Switch (Light Blue) is a genuine OEM secondary safety control for the Amana/Goodman AMEC961205DNAB gas furnace. Mounted near the blower deck or secondary heat exchanger, this auxiliary limit provides a backup over-temperature shutdown that supplements the primary high limit, adding an extra layer of protection against airflow failures and overheating.
Like the primary limit, the light-blue code designates a factory-specific trip temperature and mounting bracket. Our OEM Goodman auxiliary limit drops in with the exact set point and terminal layout your furnace expects. Generic replacements risk incorrect temperature ratings and poor bracket fit, which can defeat the very protection this part provides.
Easy (1/5) — Cut power at the furnace disconnect, unscrew the mounting bracket, transfer the wires to the new switch, and remount. Roughly 10–15 minutes. Verify the light-blue color code matches your original.