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The Goodman 0130F00038 is a genuine OEM auxiliary high-limit switch — identified by its light blue trip-temperature marking — for the GCH950905DXAA gas furnace and compatible Goodman/Amana models. This thermal safety device monitors temperature in the blower or supply area and opens the control circuit if the furnace overheats, protecting the heat exchanger and cabinet from heat damage. A tripped or failed auxiliary limit is a frequent cause of no-heat calls and intermittent shutdowns.
Because this is a safety component, the OEM Goodman 0130F00038 is strongly recommended: it carries the exact factory trip temperature (matched to the light-blue code) and correct mounting footprint. Generic limits with incorrect trip points can nuisance-trip or, worse, fail to protect the furnace. Always match the color-coded rating.
Easy (2/5). Roughly 15–20 minutes. Cut power, remove the two mounting screws, transfer the wire leads, and secure the new switch. Verify the color code matches before installing.
Genuine Goodman OEM safety part from National HVAC Parts.