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The Goodman 0130F00038 Auxiliary Limit Switch (Light Blue) is a genuine OEM safety control for the AMVC80805CXBB furnace and other compatible Goodman and Amana models. This normally-closed thermal switch opens when it senses excessive temperature, cutting the ignition/gas circuit to protect the furnace and home from overheating. The light-blue color code identifies its specific temperature trip rating, so matching the exact part is important for correct safety operation.
Limit switches are calibrated safety devices. This genuine OEM switch carries the factory-specified trip temperature and mounting profile. Using a wrong-rated or generic switch can allow unsafe overheating or cause nuisance shutdowns — always match the OEM color/rating.
Easy — mounts with two screws and two spade terminals. Disconnect power before servicing; a straightforward repair for a technician or experienced DIYer.