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The Goodman 0130F00038 Auxiliary Limit Switch (identified by its light blue color code) is a genuine OEM safety control for the Amana/Goodman AMEC800803BNAA gas furnace. This auxiliary limit adds secondary over-temperature protection — commonly guarding against blower failure or airflow blockage — by cutting the burners if temperatures exceed safe levels. The color coding indicates its specific trip temperature, so matching it exactly is critical.
This genuine OEM Goodman auxiliary limit carries the factory-specified trip temperature denoted by the light-blue marking. Installing a switch with the wrong rating — easy to do with unmarked generics — leads to nuisance shutdowns or loss of critical protection. Always match the OEM color/temperature.
Easy — mounts with one or two screws and push-on terminals. Disconnect power first and confirm the replacement's color/temperature matches the original before installing.