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This genuine OEM Goodman auxiliary limit switch (part #0130F00038), identified by its light-blue body, is a factory secondary high-limit / rollout safety control for the AMES800805CXAA gas furnace and related Goodman/Amana models. It provides an additional temperature-sensing cutout that shuts down the burner circuit under abnormal heat conditions, backing up the primary limit for safe furnace operation.
The color-coded OEM switch guarantees the exact trip temperature engineered for this furnace — critical for a safety device. Generic limits with the wrong setpoint can trip prematurely (nuisance no-heat) or fail to trip when needed. Always match the OEM color/temperature spec; OEM is strongly recommended.
Easy (2/5). Two mounting screws and two spade connectors. Shut off power and gas before servicing, and confirm you match the light-blue temperature rating. Basic DIY-friendly repair.
Genuine OEM safety part with fast shipping from National HVAC Parts.