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The Goodman 0130F00038 Auxiliary Limit Switch (Light Blue) is a genuine OEM temperature safety control for the AMVC80803BNBC gas furnace and compatible Goodman/Amana models. This normally-closed thermal cutout opens if the blower compartment or heat exchanger area exceeds its rated trip temperature, cutting the gas valve to prevent overheating. The light-blue body color denotes its specific temperature calibration — always match the color/rating exactly.
Specifications:
OEM vs. Generic: Limit switches are safety devices, and their trip point is calibrated to this furnace's heat exchanger design. The OEM light-blue switch guarantees the correct open temperature. A generic or wrong-color switch can allow dangerous overheating or cause nuisance trips. OEM is required for safe operation.
Install Difficulty: Easy. Disconnect power, remove two mounting screws, transfer the wire terminals, and reinstall. About 10–15 minutes. Confirm the color and rating match the removed switch.