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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM safety control engineered for the Goodman ACSH960703BXAA furnace and compatible models. This light-blue auxiliary limit protects your equipment by opening the control circuit and shutting down the burners if it senses abnormal heat buildup in the heat exchanger or blower compartment — a critical safeguard against overheating and component damage.
This is a factory OEM Goodman switch calibrated to the exact trip temperature your furnace was designed around. Generic aftermarket limits often carry different set points, which can cause nuisance lockouts or fail to trip at the correct threshold. For a safety control, OEM is the recommended choice.
Easy (1/5). Replacement typically takes 10–15 minutes with a nut driver. Always disconnect power at the furnace before servicing. If you are not comfortable working near gas and electrical components, contact a licensed HVAC technician.