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The Goodman 0130F00038 Auxiliary Limit Switch (identified by its light-blue housing) is a genuine OEM thermal safety control for the AMVM960805CXAA modulating, variable-speed 96% AFUE gas furnace and compatible Goodman/Amana models. This normally-closed limit switch monitors temperature at a secondary location and opens the circuit to shut down the burners if the furnace overheats — protecting the heat exchanger, wiring, and cabinet from heat damage.
The light-blue color codes a specific trip temperature — using the exact OEM part guarantees the switch opens at the factory-designed setpoint. A generic limit with the wrong rating either nuisance-trips or, worse, fails to protect against a genuine overheat. On a safety device, always match OEM.
Easy (2/5). Shut off power and gas, remove the access panel, unclip or unscrew the switch from its bracket, transfer the wire leads, and mount the replacement. No adjustment required. Confirm the furnace cycles normally and reaches temperature without tripping.
Keep your Goodman/Amana furnace safe with a genuine OEM limit switch rated for exact factory performance.