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The Goodman/Amana 0130F00038 is a genuine OEM auxiliary limit switch, identified by its light-blue body, for the AMEH801005CNAA gas furnace and compatible Goodman/Amana models. This secondary safety control opens if it senses excessive temperature at its mounting location — typically near the blower compartment — shutting down the furnace to prevent overheating when primary airflow is compromised.
The light-blue color denotes a specific trip temperature — using the wrong-rated switch defeats the safety it provides. This OEM part is matched to the exact cut-out point and terminal spade fit your furnace requires, unlike universal limits that may trip early or fail to protect.
Rating: Easy. Disconnect power, remove the mounting screws, transfer the wire leads, and secure the new switch in the original location. A continuity check confirms the switch is closed at room temperature. No gas work required.
Match the replacement color/temperature rating exactly — never substitute a different-colored limit to bypass nuisance tripping; diagnose the airflow cause first.