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The Goodman 0130F00038 Auxiliary Limit Switch (Light Blue) is a genuine OEM safety control for the ACVC80603BXCA gas furnace and compatible Goodman/Amana models. This auxiliary high-limit/rollout switch monitors temperature at a critical location and opens the circuit to shut down the furnace if it detects overheating or flame rollout, protecting the heat exchanger and home. The light-blue color code identifies its specific temperature trip rating—matching the color is essential for correct protection.
This genuine OEM switch is calibrated to the exact open/close temperatures your furnace requires. A generic switch with the wrong trip point can nuisance-trip or, worse, fail to protect against a real overheat. Always match the OEM part and color to maintain safe operation and warranty coverage.
Easy (1/5). Disconnect power, remove the two terminal leads and mounting screws, and install the matching switch. Always investigate and correct the root cause (airflow or rollout) before replacing a tripped safety switch.