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The 0130F00038 is a genuine Goodman/Amana auxiliary limit switch, identified by its light-blue body, designed for the AMEH800805DXAA gas furnace. This secondary safety device guards against flame rollout and abnormal high-temperature conditions near the burner box, opening the control circuit to shut down the furnace before a hazard develops. If it trips or fails, the furnace will not fire — a deliberate safety response to overheating or a blocked heat exchanger.
The OEM 0130F00038 carries the exact factory trip temperature and terminal configuration for your furnace's safety circuit. Because this is a rollout/overheat protector, a mismatched generic switch can defeat the intended protection. OEM is the recommended choice for any combustion-safety component.
Easy — cut power, unplug the spade terminals, remove the mounting screws, and fit the replacement. If the original tripped, have a technician inspect the heat exchanger and airflow first, since rollout trips can indicate a serious underlying fault.